Accipiter cooperii

tags: Cooper's Hawk, Chicken Hawk, Blue Darter, Accipiter cooperii, birds, mystery bird, bird ID quiz [Mystery bird] Sharp-shinned Hawk, Accipiter striatus, Cooper's Hawk, also known as a Chicken Hawk or Blue Darter (?!), Accipiter cooperii, photographed at Smith Point, Texas. [I will identify this bird for you in 48 hours] Image: Joseph Kennedy, 30 September 2009 [larger view]. Nikon D200, Kowa 883 telescope with TSN-PZ camera eyepiece 1/1250s f/8.0 at 1000.0mm iso400. Please name at least one field mark that supports your identification. I added more images of the same bird, taken…