Identifying hawks
How to use proportion, shape, and pattern to ID Cooper’s and Sharp-shinned Hawks
Contributed by David Allen Sibley
Published:
April 23, 2010
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Contributing Editor David Allen Sibley describes how to use proportion, shape, and pattern to distinguish Cooper's Hawks and Sharp-shinned Hawks. Using side-by-side drawings of hawks drawn the same size to emphasize proportion, Sibley argues that field marks commonly used to separate the species -- the Cooper's is larger-headed, larger-billed, and longer-tailed than the Sharp-shinned and has a slightly square head -- have to be understood properly in order to be used effectively.
Read more about David Allen Sibley »
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