Cave Swallows of Comal County

Click here for the 2003 colony sites and nest numbers.
Click here for pictures illustrating the various nest construction styles.

The degree of light dictated whether the nest was situated up close to a ceiling and whether it had a single or double lip structure.  Cliff and Cave Swallows commonly shared colony sites where the site was high enough for Cliff Swallows, and still low enough for Cave Swallows.  One Cliff Swallow pair even nested in a culvert with only Cave Swallows for neighbors.