HARLAN`S HAWK

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Fig. W18. Adult Harlan’s Hawk specimens. Small sample of standard tails showing little variety in color and pattern.
From California Academy of Science; photo by © William S. Clark.
Fig. W19. Adult Harlan’s Hawk specimens. Large sample showing extensive variation in tail color and pattern.
From Field Museum; photo by © William S. Clark.
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BIRDING • JANUARY 2009
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Fig. W20. Composite of many adult Harlan’s Hawks’ gray tails. Image by © William S. Clark.
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BIRDING • JANUARY 2009
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Fig. W21. Composite of many adult Harlan’s Hawks’ rufous tails. Image by © William S. Clark.
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BIRDING • JANUARY 2009
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Fig. W22. Composite of many adult Harlan’s Hawks’ banded tails. Image by © William S. Clark.
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BIRDING • JANUARY 2009