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Swainson's Hawk Gallery
               Keeled Sternum
                      (3 Views)
Needed to attach strong flight muscles.
Scapula
(2 Views)
Coracoid
(2 Views)
Coracoid and Scapula
          Still Articulared
Furcula (Wishbone)
(2 Views)
 
(
    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. [1]   They range in "Western North America from the Mississippi to the Pacific Ocean, and Hudson Bay to southern California." [2]
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[1]  Swanson's Hawk, Life History, All About Birds, Cornell Lab of Ornithology, 
http://www.allaboutbirds.org/guide/Swainsons_Hawk/lifehistory 
[2]   Reed, Charles, Western Bird Guide, Birds of the Rockies and West to the Pacific, (Worchester, MA, 1913),110
[3]  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..
Skull and Jaw
   More Views 
Portion of Cartilage
Around Eye Socket
  
   Wing Bones (Disarticulared)
  
   Humerus
    (2 Views)
  
     Radius (Left) 
      Ulna (Right)
  
   Carpometacarpus
             (2 Views)
  
   Phalanx
   (2 Views)
  
Swanson's Hawk Skeleton [3]
            Swainson's Hawk Flight Feathers
               Bird flight feathers are asymmetrical. 
  
For a discussion of the bird evolution debate, see http://www.com/bird-evolution
The Head 
The Wing
Furcula, Coracoid and Scapula
   Hinged Ribs
Not placed in order
The Keeled Sternum and Ribs
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