Avian Osteology

Femur
75 mm


	Osprey 71 - 83 mm	Northern Harrier 61 - 79 mm	Northern Goshawk 71 - 88 mm	Swainson's Hawk 65 - 79 mm	Red-tailed Hawk 74 - 91 mm


	Rough-legged Hawk 72 - 87 mm			Peregrine Falcon 59 - 77 mm	Prairie Falcon 60 - 75 mm	Great Horned Owl 75 - 87 mm		Barred Owl 66 - 79 mm