NPSpecies

An uncommon spring and fairly common fall migrant throughout the region and a rare winter and irregular summer visitor along the Colorado River. Spring birds are occasionally seen into June or even July, but one along the river on 27 Jul 1980 (Kim Crumbo, John R. Thomas) was exceptional. Data source: Gatlin, BP. 2011. Annotated Checklist of the Birds of the Grand Canyon Region. 3rd edition.

(Pandion haliaetus) Osprey is an uncommon spring and fairly common fall migrant throughout the region and a rare winter and irregular summer visitor along the Colorado River. Spring birds are occasionally seen into June or even July, but one along the river on 27 Jul 1980 (Kim Crumbo, John R. Thomas) was exceptional. Data source: Gatlin, BP. 2011. Annotated Checklist of the Birds of the Grand Canyon Region. 3rd edition.