Cliff Swallow
Petrochelidon pyrrhonota
ORDER: PASSERIFORMES
FAMILY: HIRUNDINIDAE
IUCN Conservation Status: Least Concern
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Isidor Jeklin/CLO
The gregarious Cliff Swallow nests in large colonies on buildings, cliffs, and under bridges. The gourd-shaped mud nests can number up to several hundred or thousand in a single location.