Photo 101124236, (c) Bill Finch, some rights reserved (CC BY-NC-ND), uploaded by Bill Finch

Attribution © Bill Finch some rights reserved Uploaded by sekihiker Source iNaturalist Associated observations Photos / Sounds 2 photos What Cliff Swallow (Petrochelidon pyrrhonota) Observer sekihiker Date October 15, 2020 01:28 PM PDT Place Washoe County, NV, USA (Google, OSM) Date Added October 19, 2020 03:13 PM PDT Description The nests were at the opening of a large cave beneath volcanic rock. 3 IDs Research Grade View Sizes small medium large original