Avian Osteology

Humerus
52 mm


	Sharp-shinned Hawk 41 - 57 mm	Merlin 41 - 55 mm	Western Screech-Owl 51 - 62 mm


	Eastern Screech-Owl 49 - 59 mm	Burrowing Owl 49 - 57 mm	Boreal Owl 42 - 56 mm