Cliff Swallows Building Mud Nests Under Bridge Eaves

Cliff Swallows Building Mud Nests Under Bridge Eaves

Sunday, April 26th, 2026 at 10:46:40 PM · 2026/Yolo Bypass Wetlands

This photograph captures cliff swallows actively working on their characteristic gourd-shaped mud nests attached to the underside of what appears to be a bridge or overpass structure. The birds are shown in detail clinging to their nest, which displays the typical rough, pellet-textured surface created from hundreds of mud balls. Multiple nests are visible in the frame, indicating a small colony. The wooden beams and metal framework of the structure provide the necessary protected overhang that these birds prefer for nesting. The image effectively documents this fascinating nesting behavior in natural light conditions.

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