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Thomas Heinrich | profile | all galleries >> Birds >> Birds of North America >> Seabirds >> Gulls >> Mystery Gulls >> Gulls 3 & 4 tree view | thumbnails | slideshow

Gulls 3 & 4

Interesting pair of gulls with Thayer's and Iceland characteristics
Thomas Reservoir, Boulder Cty, CO
February 19, 2008
Gull #3 (IMG_9246 thru 9294) seems to be a 3rd winter, primaries patterned like a Thayer's, showing a light, not dark, eye
Gull #4 (IMG_9276 thru 9384) shows a dark eye, pink legs richer in tone than gull #3, much darker primaries than #3
IMG_9246.jpg
IMG_9246.jpg		 IMG_9253.jpg
IMG_9253.jpg		 IMG_9269.jpg
IMG_9269.jpg		 IMG_9271.jpg
IMG_9271.jpg
IMG_9272.jpg
IMG_9272.jpg		 IMG_9273.jpg
IMG_9273.jpg		 IMG_9274.jpg
IMG_9274.jpg		 IMG_9275.jpg
IMG_9275.jpg
IMG_9276.jpg
IMG_9276.jpg		 IMG_9278.jpg
IMG_9278.jpg		 IMG_9281.jpg
IMG_9281.jpg		 IMG_9284.jpg
IMG_9284.jpg
IMG_9285.jpg
IMG_9285.jpg		 IMG_9286.jpg
IMG_9286.jpg		 IMG_9294.jpg
IMG_9294.jpg		 IMG_9315.jpg
IMG_9315.jpg
IMG_9320.jpg
IMG_9320.jpg		 IMG_9366.jpg
IMG_9366.jpg		 IMG_9381.jpg
IMG_9381.jpg		 IMG_9384.jpg
IMG_9384.jpg

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Nick Komar23-Jan-2011 05:08
I agree that the adult, dark-eyed bird looks like a typical Thayer's. The light-eyed, 3rd-winter bird looks good for a Kumlien's Iceland Gull, due to the gray tone to the dark mark on P6, and no dark pigment on P5. The P5 and P6 are adult-like on this bird, and Thayer's should have blackish marks extending to P5, and should not show a bright yellow eye. - Nick Komar
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