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Needed to attach strong flight muscles.
Coracoid and Scapula
The plumage of Swainson's Hawks are quite variable. Swainson's Hawks prefer open lands.
They are often seen perching on power poles and tall trees and soaring low and circling to great heights with the aid
of rising air currents. They have a very distinctive piercing squell that they seem to use to attract others of their kind.
Swainson Hawks' diet is opportunistic but they mainly eat small mammals such as rodents and insects such as grass hoppers, butterflies
and dragonflies.  They range in "Western North America from the Mississippi to the Pacific Ocean, and Hudson
Bay to southern California." 
 Swanson's Hawk, Life History, All About Birds, Cornell Lab of Ornithology,
 Reed, Charles, Western Bird Guide, Birds of the Rockies and West to the Pacific, (Worchester, MA, 1913),110
This skeleton is from a Swainson's Hawk that died from unknown causes. It was found near a power line and appears
to have been later run over by a piece of farm equipment..
Portion of Cartilage
Around Eye Socket
Wing Bones (Disarticulared)
Swanson's Hawk Skeleton 
Swainson's Hawk Flight Feathers
Bird flight feathers are asymmetrical.
Furcula, Coracoid and Scapula
Not placed in order
The Keeled Sternum and Ribs