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Kumlien's-Thayers Gulls
- 30 October 2005. |
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Scroll down for
four photos of two Markham gulls showing the Kumlien's-Thayers Gull cline. |
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Gull 1 |
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Gull
1. Third basic Kumlien's-Thayer's showing dark
primaries with pale tips. Brown eye. |
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Gull
1. Same as in first photo above. |
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Gull 2 |
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Gull 2.
Definitive basic Kumlien's-Thayer's Gull with black primary
pigmentation and dark eye. |
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Gull
2. Same Kumlien's-Thayer's
Gull indicating the cline between Iceland and Thayer's Gulls. P10 is still growing. |
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