- A North American swallow (Petrochelidon pyrrhonota) that builds a bottle-shaped nest of mud, grass, and twigs regarding face of a cliff or bluff or in eaves of a roof.
- a North American swallow (Petrochelidon lunifrons), which develops its nest against cliffs; the eaves swallow.
- North American swallow that resides in colonies and develops bottle-shaped mud nests on high cliffs and walls
Hypernym for "cliff swallow"
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