Observation Log 2008
GBB=Gauranty Bank building
FNB=Frost Bank building
CBB=Chase Bank building
BBB=Broadway Bank Building
BBQ=Bill Miller BBQ
1:05-4:45PM 1 adult soaring all
afternoon around the GBB roof and top floors. Also swooping
around the traffic along 410 and the access roads in spite of the major
construction going on and heavy equipment and noises. The bird
never landed during this time interval. This marks the male's
return. It is about a week late. No missing feathers.
1:30-2:00PM Adult male
soaring, did not land but stayed close to GBB and CBB bldgs.
11:45AM 1 adult soaring.
4:30-5:00PM 1 adult soaring low.
Afternoon; Stacy saw both adults
soaring together. This marks the return of the adult female.
9AM-4:15PM No birds
4:30-5:15PM 1 adult soaring over GBB but not landing.
8:40-8:50AM Both adults soaring and circling south side of
1:09PM One adult circling with a rat in its claws,
approaching roof of Chase bldg.
2:58PM Both adults soaring together off the south side of
3:22PM Female carrying a different smallish rat or a big
mouse to the southerly roof of the CBB.
Today, although dark and misty, was a very busy day for the pair of
hawks. They were visible most of the time and have begun using
the GBB more frequently, both for floating above, and for perching on.
8:48AM 1 adult circling GBB roof.
8:58AM Both adults circling low over GBB roof in tight
9:06AM 1 adult perched on the south side of GBB while the
other circled the roof.
9:15-11:16AM Both adults on GBB roof for the first time
this season. Male is perched to the female's left, about a foot
away. Once the male launched, circled for a minute and landed
back next to the female.
11:00AM Light rain started while the adults remained perched.
11:16AM Both adults launch and circle the GBB.
The rain stops.
11:43AM No birds visible.
1:02PM Both adults circling 200 yards south of GBB.
1:04PM No birds visible and light mist coming down.
1:53PM Both adults circling at 150-200' altitude between
Tesoro and BBB bldgs.
2:39PM Both adultts soaring, same altitude, between GBB and
3:10PM 1 adult floating 15-20' above the SE corner of GBB.
3:20PM No birds visible.
3:52PM 1 adult hovering at 200' altitude above CBB.
3:55PM Other adult passes over CBB with a mouse in
its talons, heading towards the 2006 nest. While descending, it
eats most of the mouse, snapping off the tail, and transters the
remains to its beak before landing in some bare branches at the old
4:06PM Both adults floating and circling the SE corner of
GBB, some formation flying.
4:40PM Female is soaring several hundred yards south of GBB.
5:00PM Both adults soaring over 410 at Nacagdoches
Cloudy morning, partly cloudy mid-day, clear in late afternoon.
9:00-9:20AM No birds visible.
9:22-10:15AM Both adults on south edge of GBB roof but
facing north into the gentle breeze, male to the left of female.
10:20AM Female stays on GBB while male glides around the
roof and former nest area at 100-250' altitude.
10:26-1107AM Both adults on GBB, male always on female's
left and today, facing north.
11:08AM Both birds launch and circle GBB. One
adult fights his reflection in the upper floor south-facing window.
11:29AM Female on GBB while the male wanders around
11:45AM Birds in formation flying around and around GBB.
12:00-12:20 No birds visible.
12:25 1 adult on GBB roof.
12:30-1:25PM No birds visible.
1:28PM 1 adult lands on GBB roof edge.
1:29PM Other adult lands on GBB roof edge.
1:47PM No birds visible.
2:15-2:17PM Both adults on GBB roof.
2:17PM 1 bird dives off GBB roof, swoops to within 5' of
the ground on Nacagdoches and lands in a shady tree 30' past there.
2:30PM No birds visible.
2:52PM Both adults in loose formation flying 50 yards south
of GBB at 100' altitude, then circling GBB. One bird attacks his
reflection in the upper story window.
2:54PM Both birds land on the south edge of GBB roof and
2:55PM Both birds launch and circle between GBB and CBB at
3:11-4:40PM No birds visible.
4:45PM Both birds circle into view from the north.
Female lands on south edge of GBB roof. Male lands on top of the
female and copulates, then slides down to perch at the female's left.
Clear sky all day with a north breeze.
Much of today seems to be courtship and beginning to select a specific
8:47AM Both adults just showed up on south side of GBB
roof. They launched and circled.
8:50AM No birds visible, probably off to the
north.9:00AM Both back, in loose fromation flying
around GBB with the the male striking the upper floor south facing
window three times with talons. Once the female floated over a
red airplane beacon mounted on the NW corner of GBB, touching it with
9:14AM Both birds are still in the air, ascending to
400-500' altitude. Then, first the male and the female following,
fold wings and plunge to the nestsite area and land in a tree using a
small swoop to brake.
10:20AM 1 adult on GBB roof.
11:44AM Male passes over CBB with a very small prey,
drifting towards GBB. He is joined by the female and both proceed
toward last year's nest site. On reaching the area, the male
engages in swooping, closing wings and dropping 50' or so, and flaring
back up. Female begins swooping too, then both land in a tree in
the nestsite area.
1:04PM Both adults on GBB roof, male to female's
right. Male launches and flies off.
1:22PM Male returns carrying another small prey while
soaring between GBB and CBB. He then carries the prey to the nest
area where both adults begin swooping above the trees. Then both
birds land in the trees.
2:02PM Both adults are in formation flying 6' in front of
the south side of CBB.
2:24PM Female is on GBB roof.
3:09PM Male lands on GBB roof edge, to the female's left.
4:15PM 1 Adult is flying among nest trees, landing
4:33PM 1 Adult circles past CBB, 6' from the windows.
4:45PM 1 adult on GBB roof.
Clear sky, cool morning, north breeze, at least at first.
8:15AM Both adults on GBB south roof edge, facing
north. Male perching to female's right.
8:27AM No birds visible, even to the north of the
Loop. Suspect they are still on the roof, just stepped back out
8:58AM Both adults on GBB roof edge.
10:08AM Femape on GBB roof edge while male floats above GBB.
10:24AM Male is gliding and hunting off the south side od
CBB while the female waits on GBB roof.
11:27AM No birds visible.
11:32AM 1 adult approached from above GBB and landed on GBB.
12:50 Both adults on GBB roof edge, but now facing
south. Male is to female's right.
1:28PM Both adults still on GBB roof.
Female only on GBB roof edge.
2:40PM Both birds on GBB roof edge.
3:45PM 1 adult on GBB roof.
4:20PM Birds in loose formation flying, 150' abave GBB.
4:40PM 1 adult gliding above and between GBB and Cbb while
other adult perches on GBB.
Clear sky, 55 degrees
9:00AM Both adults on GBB roof edge.
9:30AM No birds visible.
1:18PM Both birds flew off north to Tesoro bldg. area.
2:28PM No birds visible.
2:57PM 1 adult flying over BBB. Much soaring today in
4:00PM Female on GBB roof edge while male is soaring
around, mostly north of 410, between BBB and Tesoro bldgs.
Cloudy morning and mostly cloudy afternoon; south breeze, 60-75 degrees.
Took a lot of video today of soaring, formation flying, copulating,
nest area searching...
8:40AM Both adults on GBB roof edge.
8:43AM Both birds launch and drift north.
9:06AM Both adults are back on GBB roof edge, facing south,
male on female's right.
10:00AM 1 adult glides to nest area and lands in 3 trees
sequentially. Got a video of that.
10:30AM Both adults floating around GBB and BBB.
11:40-11:48AM Female perching on GBB while male is soaring
to the north, between BBB and Tesoro bldgs.
12:30-2:00PM No birds visible.
2:10PM Both adults come back to GBB, female floats down
first, followed by the male who floats down to the top of the female
and commences copulation. Male does not touch down on the roof
but floats off the female and soars around while the female remains on
the roof. Video fo this too.
2:15-3:15PM First the male, then the female both glide
north of 410 and float around between BBB and Tesoro, occasionally
crossing south of 410, then back north. Finally, both birds set
their wings and glide south to the nest area where they land in the
3:15-3:30PM Both adults remain somewhere in the trees at
the nest area.
3:35PM-4:15PM Both adults are soaring again north of 410
between BBB and Tesoro.
Partly cloudy morning, starting at 65 degrees and a south breeze.
8:40AM Both adults circling low over BBB.
9:09AM Both adults floating over GBB at 100-200' altitude.
9:25AM 1 bird gliding between GBB and nest area.
958AM Both adults floating around GBB at 100-125' altitude.
10:15AM 1 adult dropped into a new nest and stomped around
11:44AM 1 adult perched standing up in the nest.
4:20PM Female on GBB roof. Male shows up and lands on
the female, copulates, and lifts off for another soar around the
Starting out partly cloudy to clear, 55 degrees and a north breeze.
8:16AM Both adults lazily flap northward from the nest area
toward GBB at 50' altitude and begin floating on updrafts 10' above GBB
roof. They rise to 150-200' altitude and increase their circling
diameter to about a city block. They then rise to 300' altitude
and increase their gliding circle to about a mile.
8:21AM The adult female lands on GBB south edge followed in
15 seconds by the male which lands on the female instead of the roof,
copulates, and drifts off to soar around some more.
8:26AM No birds visible.
8:28AM 1 bird just launched from the nest, flying north
amongst the trees, toward FBB, hunting.
8:50AM Female is on GBB roof edge but perched 20' further
SW than usual, right on the building corner. She is actually
perched on an electronics box bolted onto the building's corner, not
really on the roof. She is preening.
Cloudy all day, 70-85 degrees.
When on the GBB roof, the pair perches very close together today.
8:40AM Both adults on GBB roof.
9:45AM No birds visible.
10:46AM The birds are copulating, then the male flies off
to soar over GBB.
11:07AM Both adults on GBB roof.
1:08PM Both adults still on GBB roof.
1:30PM No birds visible.
2:00PM 1 adut circling top floor of GBB.
2:33PM No birds visible.
4:26PM Both adults on GBB roof.
5:00PM Female only on GBB roof.
Cloudy morning, 71 degrees, misty.
8:51AM 1 adult circling between GBB and nest area.
10:45AM Both adults perch right next to each other on GBB
Clouds and mist have stopped, south breeze now.
10:56AM 1 adult on GBB roof, other soaring between GBB and
11:45AM 1 adult soaring around GBB.
2:03PM 1 adult on GBB roof while the other soars above the
2:10PM Both adults circling north of loop 410.
3:30PM Two men are working on the GBB roof
3:48PM The male adultcircles between GBB and CBB
3:50PM Both adults soaring between south sides of GBB and
Day started out partly cloudy, mild, a south breeze and 71 degrees.
8:40AM Both adults on GBB, shoulder to shouldere with the
male on the female's left.
9:09AM 1 bird circling over BBB.
9:19AM Both adults side by side on GBB roof again. male to
10:32AM Only female on GBB roof.
10:52AM Both adults on GBB again, side by side, with male
to female's left.
11:04AM Both adults on GBB roof, copulating. Male
launched from female's back and glided around between GBB and nest area.
11:54AM No birds visible.
12:37 1 adult on GBB roof.
2:00PM Both adults on GBB roof, side by side with male to
3:40PM 1 bird on GBB roof.
Day starts out dark and cloudy, getting ready to drizzle and 72 degrees.
8:54AM Both adults on GBB roof, male to female's left.
10:45AM 1 adult on GBB roof.
11:45AM Both adults on GBB roof, male to female's right.
1:37PM Same as above.
2:19PM 1 adult on GBB roof.
Clear sky, slight north breeze, 71 degree morning.
8:34AM 1 adult on GBB roof, looks like the male.
8:36AM No birds visible.
8:41AM Both adults on GBB roof, very close side by side but
with one bird facing north, the other facing south. This is not
8:58AM Female has turned around, now both are facing north
with the male to the female's right.
9:05AM The male is at the nest, stomping around in it while
the female observes from GBB roof. The male flies to GBB, lands
on the female, copulates, and drops down the the roof on the female's
9:22AM 1 adult soaring at 150' altitude between GBB and
9:29AM 1 adult in the nest.
10:44AM Both adults on GBB roof facing north with male to
the female's right.
12:22 1 adult on GBB roof.
1:35-230PM 1 adult on GBB roof.
2:40PM Both adults on GBB roof, male to female's
right and both now facing south.
2:58PM The male launches and circles at 150' altitude
above GBB while female preens on GBB roof. The male ascends to
3:02PM Female still on GBB but the male is out of
50 degrees, clear, sw breeze.
8:56AM 1 adult on GBB foor while the other is on the nest.
8:59AM No birds on GBB but 1 still at the nest.
9:20AM No birds visible.
9:27AM 1 adult standing in the nest.
9:40AM Both adults on GBB roof, male to female's left.
10:57AM Female on GBB roof.
1:23PM 1 adult carries prey past GBB and descends towards
2:00 No birds visible.
3:27PM 1 adult floating between GBB and FNB while other
adult descends at high speed to land near but not on the nest.
4:47PM 1 adult on the nest.
Clear, 60 degrees, breeze indeterminate.
8:47AM 1 adult floating above the southeast corner of GBB
while other adult is perched on the edge of the nest a couple of blocks
9:40AM 1 adult at the nest, moving around.
10:07AM No birds visible.
10:23AM 1 adult at the nest.
10:45AM Both adults floating and diving over GBB. 1
Adult then turns and ramped down to the nest.
11:33AM 1 adult launched from the nest and flapped off at
canopy height toward FNB.
11:45AM No birds visible.
2:38PM 1 adult at the nest.
3:36PM No birds visible but at the sun's current angle,
cannot see well enough around the nest.
4:14PM 1 adult soaring at 200' altitude between GBB and
Cloudy, 74 degrees, south breeze.
8:30AM 1 bird on GBB roof.
10:02AM One adult on the nest, other not visible anywhere.
1:00-1:30PM 1 adult playing at 100-200' altitude, swooping
and diving, roller-coaster like.
1:47PM 1 adult on GBB roof.
2:50-4:00PM No birds visible.
4:23PM 1 adult on GBB roof.
4:34PM No breeze but 1 adult soaring over GBB anyway.
4:49PM Male on GBB roof facing north. Breeze must
4:56PM No birds visible.
This day seems to be the start of
Dark, damp, cloudy with mild temps. and south breeze.
10:00AM No birds visible.
10:18AM Adults mate on GBB roof. Male lifts off and
soars around while female preens.
10:19AM No birds visible.
10:38-11:08AM 1 adult on GBB roof facing north.
12:35 No birds visible.
12:59 1 adult on GBB roof, looks like probably the
2:08PM 1 adult on GBB roof, looks like the male.
2:09-4:54PM No birds visible. (Cannot see into
the nest in afternoon)
Overcast, humid, dark morning, partly cloudy afternoon
8:53AM 1 adult on GBB roof facing south
9:07AM no birds visible
10:27-1139AM 1 adult on GBB roof
1:00PM No birds visible
1:18PM Preening famale on GBB roof
1:45PM One adult soaring between GBB and nest at 70-100'
2:04PM 1 adult on GBB roof.
2:05PM Adult launched, circled and then descended toa
place 50 yards north of the nest.
3:17PM Male on GBB rof, female on the nest.
4:10-4:16PM Male circling GBB at 200' altitude with a rat.
4:16PM Male with the rat dove down to the nest area.
5:00-5:05PM Male soaring over GBB,
Light overcast, 70 degrees in the morning
8:41AM 1 adult on GBB roof.
9:08AM-1:20PM No birds visible.
3:16PM Adult female on GBB roof.
3:20PM Female flew off GBB roof, went to the nest and
exchanged incubating duties with the male. The male flew off and
landed on GBB and began preening.
4:57PM No birds visible but cannot see into the nest
Clear sky, 70-96 degrees today
8:44AM Both adults launch simultaniously from the
nest. Both head to GBB. Female lands and male lands on
female and copulates, lifts off and glides away. Female remains
9:30AM Female still on GBB while male can be seen
incubating at the nest.
10:47-11:43AM Nothing visible.
12:08 One adult just landed out of sight in the center of
the GBB roof.
1:26PM Female on GBB roof preening, especially the base of
1:30PM No birds in sight.
1:31PM Female appears, gliding over GBB roof, sets wings,
bores at high speed to the nest and lands there. Male gets up off
the nest and leaves, flying to BBB area. Female settles into the
1:33PM Male glides from BBB to GBB, swoops and circles
awhile, then disappears.
4:54PM No birds visible.
Calm hazy morning, starting at 70 degrees.
8:35-10:15AM Female on GBB roof.
10:15AM Female launched and went to the nest, relieving the
male, who then flew off.
No further observations this day.
Overcast sky, winteer-looking cloud surface, 65 degree morning.
9:06AM 1 adult on GBB roof.
9:30-10:00AM No birds visible.
12:12 1 adult on GBB roof.
2:15-2:37PM No birds visible.
No observations between 2:37 and 4:45PM
4:47PM 1 bird on GBB roof.
Overcast, 74 degrees morning.
8:48AM-3:30PM No birds visible.
3:40-4:30PM 1 adult on GBB roof.
Wet but light overcast morning, partly cloudy afternoon
9:05AM-12:00 No birds visible.
12:30 1 adult on GBB roof. Bird launched and drifted
north over 410.
1:19PM 1 adult on GBB roof, liiks like probably the male.
1:37-4:30PM No birds visible.
4:42PM 1 adult on GBB roof.
9:00-11:30AM No birds visible.
11:32AM Male on GBB roof.
1:04PM No birds visible.
2:12PM Male back on GBB roof.
3:10PM No birds visible.
4:05PM Male on GBB roof.
4:48PM 1 adult on GBB roof, cannot tell which one.
North breeze, partly cloudy, 65
8:55AM No birds visible.
9:20AM 1 adult on GBB roof.
9:28AM No birds visible.
9:32AM 1 adult on GBB roof.
10:20AM Both adults at the nest. Both just left, flew
up, circled the nest and engaged in swooping. One then returned
to the nest.
1:16PM No birds visible.
3:27-339PM 1 adult on GBB roof, looks like the male.
4:45PM No birds visible.
Clear, 65-90 degrees, very calm morning.
8:14AM No birds visible.
8:41AM 1 adult moving around on the nest.
8:45-11:00AM No birds visible.
11:00AM Female on GBB roof.
11:27-2:29 No birds visible outside the nest.
2:29PM 1 adult appeared at 75’ altitude soaring above
the nest. It soared northward, gaining altitude between GBB and
FNB, dissapearing north of there.
2:30-5:00PM No activity observed.
Clear sky, 70 degrees, south breeze.
8:44AM 1 adult on GBB roof, looks like the male.
9:00AM Male launched and began gliding and hunting
between nest and GBB but not enough lift without a lot of
flapping. Male returned to GBB , circled a few times, floating on
the weak updraft against the building, 10-20’ above the roof. He
then glided down towards the nest, landing in a dark-leafed tree in
front of the nest. A grackle had followed the hawk during the
9:13AM Male moved from dark-leaved tree to the
nest. Female got off the nest and both launched, flying north
toward FNB gaining altitude.
9:14AM One adult breaks off flying, sets wings, and
descends to the nest, landing directly on it. Other adult drops
down to GBB roof and turns out to be the larger female.(incubation swap
9:21AM Female launched from GBB and finds, like the
male previously, that the air is too still for good soaring and she
returns. Landing on the center of the roof instead of the usual edge
10:44AM Another incubation swap. The male, now
relieved, finds adequate updrafts and glides to 150’ altitude,
northward oveer loop 410 to hunt.
12:25 No birds visible.
1:19PM 1 adult soaring over GBB.
3:12PM No birds visible.
75 degrees, light overcast, south breeze.
9:06AM-5:07PM No birds visible the times I looked out
Heavy overcast, damp, 75 degrees, going up to 92 degrees and partly
8:20AM No birds visible.
8:35AM 1 adult on GBB, looks like maybe the male.
9:03AM No birds visible.
10:02AM 1 adult on GBB, looks like probably the
1:45-3:07PM No birds visible.
4:05PM 1 adult brushed past south side windows of CBB
and continued over to GBB, brushed the south side updrafts there, and
cntinued east towards FNB.
4:48PM: No birds visible.
Partly cloudy, 75 degrees, SE breeze.
8:34AM 1 adult on GBB.
8:46AM No birds visible.
9:02-10:00AM 1 adult on GBB roof.
11:16AM 1 adult, probably the male, glides updrafts
between GBB and CBB. A male grackle chases part of the time.
12:49 1 adult on GBB roof.
2:55PM No birds visible.
Overcast, south breeze, 77 degrees.
8:45-11:16AM No birds visible.
11:16AM 1 adult soaring against GBB updrafts.
2:00PM No birds visible.
2:10PM 1 adult on GBB roof.
2:16PM The dault on the roof lifted off, floated,
then turned north, going across loop 410.
2:20PM Adult came drifting back and landed in a tree
by the tile-roofed house 50 yards south of the nest.
2:26PM A Blue Jay discovered the perching hawk and is
making repeated lunges at it.
2:30PM Adult perching in the tree dropped out of
3:47PM 1 adult flapped low over the canopy above the
nest, turned and landed at the nest.
Partly cloudy, 74 degrees, east breeze.
8:49AM 1 adult on GBB roof facing north.(not typical
10:37AM Same adult perched but now being pestered by
12:30 1 adult circling over loop 410-Nacagdoches
1:07-5:33PM No birds visible.
Partly cloudy, 74 degrees, SE breeze.
8:53AM 1 adult on GBB roof.
11:56AM No birds visible.
12:50 1 adult circling on updrafts above CBB while
being chased by a grackle.
2:30PM No birds visible.
4:34PM 1 adult on GBB roof.
Partly cloudy, 85 degrees, breezy.
8:53AM No birds visible.
9:05AM 1 adult on GBB roof.
10:34AM-2:08PM No birds visible.
No further observations this day.
Cloudy, 71 degrees, south breeze.
8:48AM Female on GBB roof.
No further observations this day.
Partly cloudy, 75 degrees, south breeze.
8:58AM-5:00PM No birds visible all day, must have
looked out at the wrong times.
Partly cloudy, 77 degrees, stiff south breeze.
8:30-9:30AM Both adults reported in the air at the
same time by Stacy, a co-worker.
9:30AM-5:00PM No birds visible.
Mostly cloudy, 76 degrees, SE breeze.
8:35-11:30AM No birds visible.
1:15PM 1 adult glided past south side of CBB on
1:20PM No birds visible.
2:30-2:40PM 1 adult dive-bombing a buzzard that
continued to soar back and forth near the nest.
3:55PM Male is hunting low, back and foth past the
4:46PM No birds visible.
Cloudy, 77 degrees, breezy.
8:50AM No birds visible.
10:05AM 1 adult hunting and diving just above the
10:10AM The adult
was able to get a mouse and soared
back over to the nest, delivering it to the incubating adult at
10:18AM.11:00AM Faint drizzle.
11:42AM No birds visible.
3:35PM 1 adult circling at 150-200’ altitude,
occasionally diving at a passing buzzard, and deflecting a pestering
Kingbird or Mockingbird.
Dark, light drizzle.
8:39AM No birds visible.
9:19AM Light rain, no birds.
10:45AM Rain over, light overcast, still no birds
11:51AM No birds visible.
1:30PM 1 adult soaring and being attacked by 2
4:20PM No birds visible.
4:45PM No birds visible.
Partly cloudy, 77 degrees, SE breeze.
8:41AM 1 adult
carrying a rat to the nest. The
rat’s long tail very visible.
9:05AM No birds visible.
12:56 No birds visible.
3:19PM 1 adult gliding by south side of CBB, being
chased by 2 grackles trying hard to keep up.
5:15PM No birds visible.
76 degrees, overcast sky, SE breeze, going up to 98 degrees. No
activity visible without scope.
8:28AM No birds visible.
11:39AM No birds visible.
4:05PM No birds visible.
77 degrees, cloudy to partly cloudy and breezy.
8:48AM No birds visible.
10:52AM No birds visible.
3:21PM No birds visible.
8:50AM No birds visible.
10:18AM No birds visible.
11:18AM 1 adult circling at 125' altitude between GBB and
CBB, then it landed on GBB roof.
11:22AM Bird launched from GBB and climbed to good
altitude, gliding over CBB, then toward the nest. Meanwhile the
mate is standing in the nest.
4:36PM Male is hunting at low altitude(40-60'), between CBB
and GBB; then between nest. GBB, and FNB, rising to canopy leven and up
to 100' altitude.
8:29AM Male on GBB roof while female is perched
on the rim of the nest facing north toward GBB.
8:53AM Female settled back on the nest.
11:00AM-4:27PM No birds visible.
Partly cloudy, 85 degrees, calm.
9:00AM No birds visible.
9:21AM 1 adult on GBB roof.
9:48AM-4:54PM No birds visible.
Partly cloudy, 76 degrees, SE breeze.
9:18AM No birds visible.
10:19AM 1 adult flapping east to west 50 yards south of CBB
towards Wells Fargo bldg., evidently hunting.
11:20AM-3:56PM No birds visible.
Partly cloudy, 75 degrees, calm.
Big day. active white chicks
showing momentarily, lots of
activity at the nest.
8:32AM Female on GBB roof.
8:35AM Female launched and circled over to the nest,
landing in an adjacent tree. Male, on the nest looked up.
8:38AM Female flew to nest. Male got up and moved 8'
over to a branch nearby while female settled on the nest. Male
glided over to an adjacent tree.
8:43AM 1 adult perches 10' from the nest, then flies over
to a nearby but out of sight tree.
8:48AM 1 adult landed on GBB roof, looks like the
male. Other adult is back at the nest.
9:02AM No birds on GBB roof but 1 adult perched 10' above
the nest. Other adult presumably settled down in the nest.
The bird perched above the nest launches and disappears.
9:03AM 1 adult on the rim of the nest, peering over at a
bobbing white chick
9:20AM Same adult stil bending over the nest and chick.
9:32AM Male on GBB roof, female poking into the nest, chick
not often visible above the rim of the nest.
9:59AM Male gone from GBB roof.
10:16AM Male back on GBB roof, nest no longer very visible
at this sun's angle.
10:24AM 1 adult soaring 25-100' above roof of GBB, swooping
and hovering, not hunting.
12:45 No birds visible.
2:09PM 1 adult moving on the nest.
230-404PM No birds visible.
75 degrees, clear sky, calm morning.
Using high power scope today
8:35AM 1 adult perched 5' above the nest.
9:03AM Both adults were at the nest, 1 perched above it,
the other on the nest. Then the bird perched above flew off.
9:14AM Both adults back at the nest, 1 perched 3' above,
other on the nest.
9:47AM 1 adult perched on the nest rim, other adult perched
in a nearby tree and 2 chicks with white down in the nest.
9:48AM Male flew off and landed on GBB roof, leaving the
female moving around the nest rim.
12:44 1 adult moving around on the nest.
1:31PM 1 adult on the nest.
2:21PM 1 adult at the nest rim, bending over and moving a
3:40PM No birds visible, nest view blocked by afternoon sun
9:10AM No birds visible.
9:14AM 1 adult on GBB roof, other at the nest edge with 2
whitish chicks. Adult at the nest is preening. The adult on
the GBB roof has a rat in a talon. It launches, sets wings, and
glides rapidly down to land on the nest edge, delivering its rat.
9:49AM While watching the nest with the scope, an adult
just flew in and perched on the nest edge, bending down to inspect the
9:56AM Male perched on the GBB roof.
10:03AM Male just glided from GBB roof to the nest.
Female is on the nest while the male perches a few feet above.
10:52AM 1 adult with prey circling circling updrafts on the
south side of CBB, drifting over and dissappearing, probably to eat a
meal away from the nest. Meanwhile 1 doting adult leans into the
nest, attending the chicks.
11:38AM 1 adult on the nest and 1 chick moving. Other
adult not visible anywhere at the moment.
12:39 No birds visible other than the adult on the nest.
1:09PM 1 adult on the nest, other adult is ushering a
buzzard out of the immediate territory using swoops and close passes.
76 degrees, almost clear, calm morning.
8:50AM 1 adult at the nest, chicks visible. Remaining
adult not visible.
8:56-9:22AM Male on GBB roof, surveying the territory
toward the nest.
9:40AM Male gliding between GBB and nest with small prey,
maybe a mouse or cicada.
9:58AM Male is back on GBB roof.
10:06AM Male circling at 150' altitude 50 yards south
of CBB, head down, casual hunting; rising to 200' altitude, then
drifting east towards GBB, still rising to 250' altitude. He
surveyed loop 410, then circled around, returning to vicinity of GBB
and made 2 deep 60' swoops with wings collapsed. No prey.
The bird resumed gliding around GBB below roof level at about 60'
altitude and drifted twoards FNB, then back to GBB where it landed
around 1015AM with no prey.
10:16AM Male launched from GBB, circled below roof level,
then flapped and glided in still air overe loop 410 and further north.
11:20AM No birds visible outside of the nest.
1:15PM Male came swooping past a buzzard to move him away
from the nest area.
No further observations this day.
8:11AM No birds visible without the scope.
8:20AM 1 adult landed at the nest, delivered prey, and left.
8:42AM Female is tearing up bits of prey at the nest and
placing the bits by the chicks. Male not visible.
8:48AM Male floating 10' above south side of GBB on
8:50AM Male dissappeared, hunting somewhere.
12:24 1 adult hunting low around the nest, right at canopy
3:00PM Male appeared briefly soaring above GBB.
4:30PM No birds visible.
76 degrees, partly cloudy, calm morning.
N scope setup today.
9:06AM No birds visible.
9:11AM 1 adult soaring at 90' altitude at CBB south side
9:14AM Adult descended to canopy level and proceeded to
hunt 200 yards south of CBB.
11:41AM No birds visible.
1:08PM 1 adult hunting100-300 yards south of CBB at 70-90'
1:09PM Hunting adult disappeared, may have dove on
3:45PM 1 adult was gliding between GBB and the nest at
canopy level and sometimes lower. The bird hunted over the nest
then plunged into the canopy at the nest. Could not see if it
landed at the nest or just nearby.(bad lighting on the nest in late
76 degrees, partly cloudy, calm. No scope setup today.
8:45-10:00AM No birds visible.
10:03AM 1 adult soaring at 80' altitude 25-75 yards out
from south side of CBB being pestered by a grackle.
12:19 1 adult soaring in updrafts against south side of CBB.
2:31PM More soaring in CBB updrafts.
3:35PM 1 adult carrying a rat in updrafts of CBB, circled
over to updrafts against GBB, then disappeared.
77 degrees, partly cloudy, se breeze.
8:55AM Both adults floating above GBB. This marks the first time this season
the female feels like leaving the chicks for awhile. Male banked west and headed over to CBB while
female landed on GBB, floated up in updrafts, and landed softly
again. Male continued floating on updrafts at the other
building(CBB), while female stayed put on GBB.
9:23AM The adult pair engaged in formation flying round and
round the GBB. Both landed on GBB, then both flew off, drifting
north over 410, still together.
9:45AM Both adults returned as a pair. The female
landed in the center of GBB roof(unusual), while male floated in
updrafts a few feet above the GBB south edge, eventually landing there.
11:33AM Male glided over to GBB and landed on the GBB roof.
No further observations this day.
Partly cloudy, 77 degrees, humid, calm.
8:35AM 1 adult on GBB roof, other adult flapping-soaring
hunting at 100' altitude southeast of GBB, occasionally pestered by
8:50AM 1 adult on GBB, other adult at the nest, one chick
9:05AM 1 acult precariously perched on top of a chinaberry
tree just opposite the nest. Chick is in the nest moving a
little. The other adult is not visible but could be around the
backside of the nest and screened by foliage.
11:02AM 1 adult on GBB.
1:35PM Male on GBB roof. Female at the
nest. Chicks are losing their white down.
1:50PM No birds visible away from the nest.
2:58PM Male glided by south side of CBB in updrafts at 60'
altitude looking down and hunting.
3:19PM Male on GBB roof edge.
4:30PM Except for movements at the nest, no birds visible.
Light overcast, 71 degrees, calm.
8:50AM 1 adult on GBB.
9:19AM No birds visible.
9:25AM Both adults at GBB, 1 perching, 1 floating a few
feet above the edge. The floater has prey, it rapidly descends to
the nest, deliveres the food, and returns to GBB where the adults
copulate. ! adult then launches and glides down to the nest tree,
lands at the nest and looks around, launches and pumps back to GBB
roof. meanwhile the other adult that was on GBB has left and is
gliding north over loop 410, back to hunting.
9:36AM Male is back on GBB. Female is on the nest
edge picking apart prey for the chicks. Chicks still have white
heads but now have brown wings with 2 to 4 inch brown feathers on
9:46AM Both adults on GBB roof edge. Chicks at
the nest are active, looking around and shuffling in the
nest. Still two chicks present.
10:21AM 1 adult on GBB.
11:55AM No adults visible.
1:40PM 1 adult with small mouse-size prey drifting
toward the nest from the CBB-GBB area. The other adult is
circling at 100-200' altitude east of the nest.
3:05PM A rain shower is approaching. 1 adult is
gliding-hunting from 100-150' altitude north and east of the nest but
south of FNB. This adult has a cicada-size prey in a claw that it
eats from about once every half minute. As rain approaches, the
adult plunged down into the trees close to last year's
nest. That would be about 100 yards north of the current nest.
No further observations this day.
Partly cloudy, 68 degrees.
8:50AM Both adults on GBB roof.
8:51AM The male launches and hunts in the canopy top
100-300 yards west of the nest.
9:01AM The huting male has drifted all the way back to FNB,
then GBB. There, the female launched from GBB and joined the male
in circling GBB at 7th floor level. Chicks are moving around in
the nest while the adults glide around and around GBB, then drift north
across loop 410.
9:03AM The female is back on GBB while the male circles
west at 150' altitude above GBB.
9:06AM Male has drifted west over to CBB where the female,
launched from GBB joins the male at 100' altitude, both looking down
hunting. Both birds glide-flap at 75-90' altitude between GBB and
Wells Fargo bldg, looking down hunting.
9:10AM No adults visible.
9:15AM Female lands on GBB without prey, male is stil not
9:17AM Male returns without prey and lands on GBB.
Both face north but look over their shoulder towards the nest.
Chicks are shifting around in the nest.
9:23AM Both adults launch and formation fly around and
around GBB. Female lands on GBB aftere several circles,
then launchesd again, joining the male as they circle-drift north over
loop 410 at BBQ, then NW towards Tesoro bldg.
9:33AM 1 adult appears floating above GBB with prey.
It picks at the prey while floating, then sets wings for the
nest. Prey had at leat 4 appendages and may have been a pair
of objects rather than a single object. The bird used both
talons in securing it. The prey took 40 minutes to aquire, longer
9:57AM Chicks are moving slightly. Adults are not
10:25AM Female on GBB facing asouth and the nest.
11:02AM Male soars in updrafts of CBB with a large baby
bird as prey. Male lands on GBB, presents the prey to the female
who picks it up and together both launch and circle GBB at 7th floor
level. After several minutes the male lands on GBB roof while the
female glides down to the nest, delivering the large baby bird to the
chicks. The adult female stays at the nest for several minutes.
11:57AM No adults visible.
2:30PM Chicks are active. 1 adult in the nest.
It launches and flies over to GBB where it is joined from the air by
the other adult. They corcle GBB together for 1 revolution then
land on the roof edge. The female lands first, male landing a
good distance to the female's right. The male floats back up,
over to the female, drops down on top of her and copulates, then drops
down nest to her. Thundershowers in the area.
2:37PM Both adults are gone somewhere. Gusty south
breeze from nearby showers.
3:25PM Both adults are at 100-150' altitude playing in the
updrafts far above the office buildings. Dark sky as rain is
near. One adult sets wings and makes a long high speed glide to
check on the chicks, lookks down, wheels around and returns to the
building updrafts. Adults alternate from playing in GBB updrafts
to playing in CBB updrafts. Eventually they both glide back to
GBB occasionally setting down and then floating again.
3:30PM 1 adult peeled off and set wings for the nest area,
landing at high speed 100 yards north of the nest in thick canopy.
4:45PM Both adults alternately glide and perch on the GBB
south side foof edge with its updrafts.
Partly cloudy, 73 detrees, calm.
8:46AM 1 adult on GBB roof.
9:54AM Both adults on GBB roof.
11:13AM Raining but 1 adult still on GBB roof edge.
Other adult is on the nest, sheltering chicks.
11:39AM No birds visible, rain has subsided to a drizzle.
1:00PM Rain over.
1:45PM Roving rain showers but not raining at the
moment. No adult hawks visible but alittle movement at the
nest. May be an adult there back behind screening foliage.
No further observations this day. Happy fourth of July.
Mid-level cloud overcast, showers yesterday, 71 degrees, slight breeze.
No scope used today.
8:11AM Both adults on GBB roof.
8:48AM Both adults launch from GBB and glide-flap east
9:04AM 1 adult on GBB.
10:55AM Female flew past CBB, then GBB, then on to the nest
deliveing prey. She landed directly on the nest edge.
Meanwhile the male perches on GBB.
12:25 No birds visible.
12:45 Female perched on GBB, Male is fooling around
soaring back and forth nearby.
1:34PM Both adults following each other, flapping and
soaring around and round mGBB at about 7th floor level, then formation
flying, swoping and diving with wingovers at about 100-150' altitude
200 yards SE of GBB. The birds are doing numerous short drops
with wings completely clamped tight against their chests. The
pair then peeled off at about 60mph to the Tesoro Tower area on a high
1:40PM While the pair was wheeling and swooping over there,
a Turkey Vulture drifting east began approaching the nest area.
Both adults broke off soaring and set a glide of about 30mph against
the wind back towards the nest area to intercept the vulture. By
that time though the vulture's route had drifted a little away
from passing close to the nest and so the hawks resumed wheeling and
gliding, but closeer to FNB.
1:47PM The adults are still soaring together, now 300 yards
west of the nest and veering back towards GBB. Then they went
into formation flying at GBB, just 6' apart, even through the
1:57PM No birds visible. Roving rain showers
developing on the horizon.
2:35PM Heavy rain shower, some thunder.
4:04PM Very dark, sprinkling, no birds visible.
4:51PM Rain and thunder.
Cloudy to partly cloudy with low clouds, 73 degrees, nearly calm.
8:45AM No birds visible.
10:00AM Female on GBB roof.
10:29AM No birds visible.
10:33AM Female is back on GBB roof.
2:00-2:15PM Heavy rainshower, very dark, even a nighthawk
2:30PM More rain
3:00PM Rain overm both adults formation flying near GBB.
3:54PM 1 adult on GBB roof.
No moening observations.
Afternoon is partly cloudy. mid 80s temperature, humid, light SE breeze.
12:00 1 adult on GBB roof.
12:02 No birds visible.
1:09PM 1 adult soaring between GBB and 200 yards south of
GBB at 100-200' altitude.
2:15-3:08PM No birds visible.
No futher observations today.
Partly cloudy, 74 degrees, humid, SE breeze. No scope used today
8:56AM No birds visible.
9:01AM Both adults just arrived at GBB. The female
landed on roof while the male began circling at roof level. The
male landed on the female and copulated, then hopped down to perch to
the female's left. The next three minutes were occupied with the
female doing a lot of tail feather preening.
9:16AM Female remains on GBB roof but male has left.
9:20AM 1 adult floating just above GBB roof edge,
other out of sight.
11:20AM No birds visible.
4:15PM 1 adult floating 20' above GBB roof.
5:05PM Both adults perch side by side on GBB roof.
Partly cloudy, light south breeze, 75 degrees. Scope set up today.
8:48AM Female on GBB roof, just launched, flapped 200 yards
south in dead air, turned around, and flapped back to GBB.
8:58AM Both adults floating above GBB on updrafts.
There is a large chick at the nest, now two thirds the size of the
adults and nearly fuly feathered with brown feathers.
10:36AM No birds visible.
11:02AM Two men on GBB roof, pointing at the red aircraft
warning lights. One adult floating over a corner of GBB, two young
visible at the nest.
12:37 Both adults are hunting south of GBB. The two
chicks at the nest are just about entirely brown and pigeon-sized or
larger. They are sitting o opposite sides of the nest rim.
Adults are at canopy heights, heads down doing some serious hunting
independently of each other in the same area as the nest. The
male is missing a tail feather while the female is missing a left wing
primary feather so it is molting season.
1:14-2:45PM No birds visible.
4:26PM 1 adult soaring between BBB & GBB.
Chicks are moving around at the nest but staying in the shade, not very
Clear sky, 74 degrees, no scope used today.
8:50AM No birds visible.
9:03AM 1 adult just landed on GBB and was still there at
9:15. Dead air.
10:30AM 1 adult gliding along the south face of CBB
10:40-11:43AM 1 adult perched on GBB.
12:39-1:46PM No birds visible.
4:33PM Male is flapping and gliding west to east 300
yards south of CBB, being pestered by a Western Kingbird.
Almost clear, 75 degrees, light south breeze. No scope today.
8:38AM No birds visible.
9:22AM 1 adult on GBB, other adult circling within 25
9:53AM-4:07PM No birds visible.
4:04PM 1 adult riding thermals south of GBB, rising from
150' to 400' altitude. Lost track of the bird, expect it kept
Partly cloudy, 75 degrees, almost calm.
8:55AM Both adults on GBB roof.
9:03AM Both adults launched and attempted to soar in nearly
dead air. Male went up to 125' altitude, female went just to 90'
altitude. female is heavier and returned to GBB roof after only a
minute's effort. The male continued soaring, but only over the
limited updraft against the side of GBB. He too landed after
another minute as air went completely dead.
9:29AM No birds visible.
11:02AM 1 adult on GBB. Cloudy with high clouds.
12:20 Both adults circling at 80' altitude between GBB,
FNB, and nest. Female could barely stay up in the stil air and
slowlycircled towards the tile-roofed house south of the nest where she
entered the canopy and did not come out. Meanwhile the male
drifted north over loop 410.
4:15PM No birds visible.
Partly cloudy, 76 degrees, calm. Using the scope today.
8:34AM 1 adult on GBB.
8:41AM Two nearly grown young perched in the nest tree
above the nest. Photographed those immediatly. Both adults
are perched on GBB, facing the nest, several hundred yards away.
The young are nearly fully grown, lacking only about an inch of feather
growth on the outer wing primaries.
8:50AM Female on GBB, male went off hunting.
9:03AM Both adults have left. There is a third hawk
at the nest, in the nest cup that I believe is another young one rather
than an adult.
9:31AM 1 adult glided past the south facing windows of CBB,
10' out from the building on updrafts at 6th floor level.
10:05AM 1 adult is soaring 100 yards south of CBB at 100'
altitude. The two big
young are perched in the outermost branches of the nest tree and one is
pumping his wings for excercise and balance. The third
young is perched a little loweer than the other two.
10:11AM All young back down around the nest in the
shade. No adults visible.
10:55AM Male is hunting at 100-125' altitude between
CBB, BBQ, and FNB.
1:37PM No adults visible. 1 young visible at the
front of the nest, others are further back in the shade.
2:25-4:31PM Except for slight movement around the nest, no
Partly cloudy, calm, 76 degrees.
8:14AM Both adults on GBB roof, male to female's left and
both facing south as usual. 1 young perched just above the nest
and in the open.
8:51-9:05AM Adults still on GBB.
9:37AM No adults visible but young are moving around
a bit but staying in the nest tree.
10:49AM No birds visible. Young have moved back
into the shade by the nest.
No change the remainder of the day.
Partly cloudy, calm, 76 degrees. No scope today.
8:59AM No birds visible.
9:07AM 1 adult on GBB roof.
9:30-11:09AM No birds visible.
11:23AM Still no adults visible but binoculars shows
1 of the young around the nest.
1:52PM Workers are on GBB roof, setting up window
washing cables. No birds visible. Sky has cleared.
3:40-3:48PM No birds visible but pretty day now.
Clear sky, calm, 68 degrees.
8:50AM 1 adult glided past CBB and continued towards
GBB where it landed.
9:54AM-2:44PM No birds visible.
2:44PM 1 adult is hunting at 80-100' altitude 75
yards south of the nest, drifting west and rising up to 150'
3:13PM Female is on GBB roof but some distance back
from the edge. This is not common. She is molting on the
sides and back.
3:50PM 1 adult is soaring over GBB.
Partly cloudy, east breeze, 74 degrees. Hurricane Dolly supplying
the east breeze. Scope used today.
8:46AM Both adults on GBB roof.
9:05AM Female still on GBB roof but male is floating 10'
above the roof. No birds
visible at the nest, the young have left the nest! Both adults are formation flying above
GBB. Female still has the missing primary feather. Both
adults rose to 250-300', seperated somewhat, and floated 200 yards
south of GBB. Hurricane has caused a wind shift from east to
11:25AM 1 adult on GBB roof. No evidence of the young
either at the nest tree or in the vicinity.
12:09 Both adults on GBB roof, overcast skies, still no
sign of the whereabouts of the young.
12:37AM Female is on GBB, male is off hunting somewhere.
12:40 Female launched, rose to 250' altitude(high for her),
over the nest, then returned to GBB roof just as the male
returned from the north. The male did not immediately land but
remained floating on GBB udrafts.
12:50 Female launched and joined the male in floating
at the edge of the building. The male then left, going east and
north while the female continued to drift about just above roof
level. Then the female set her wings and ramped down into the
canopy 25 yards north of the tile roof house.(about 100 yards south of
the nest tree). This should be the location of the young at the
2:45PM Rain shower has started. The male appeared
over GBB and then glided to the nest area, then ramped down into the
canopy 25 yards north of the nest tree. Remaining hawks are not
3:00PM Rain has stopped, no birds visible.
3:32PM 1 adult on GBB roof, no other hawks visible.
Dark, heavy overcast, wet. Rain predicted from hurricane Dolly,
8:56AM 1 juvenile located on a dead limb, very close to
where the female had entered the canopy yesterday. This dead limb
is an extension of the tree holding last year's nest The
remaining hawks are not visible.
9:00AM The juvenile has moved back out of sight.
9:17AM Drizzle has started, then rain. Very dark with
car headlights on and some streetlights as well.
11:25AM Still dark, intermittent drizzle.
1:03PM Rain is over and sky brightening but no birds
2:15PM More rain.
3:09PM Even more rain, no birds visible.
3:45PM Drizzle now.
4:00PM Rain over.
4:58PM Both adults on GBB roof.