Avian Osteology

Femur
70 mm


	Northern Harrier 61 - 79 mm		Swainson's Hawk 65 - 79 mm	Peregrine Falcon 59 - 77 mm	Prairie Falcon 60 - 75 mm		Spotted Owl 62 - 71 mm	Barred Owl 66 - 79 mm