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first cycle
glaucoides
Iceland Gull


see proposed thayeri-kumlieni-glaucoides scale


Fig 1) This bird has a slight hint of markings on the outer primaries. Note the short-legged look. February 12, 2007. Grimsstaaholt, Reykjavik, Iceland. Photo courtesy of Omar Runolfsson.

Fig 2) The closer bird, probably a male, is reminiscent of Thayer's in ground color and structure, although it is probably more petite. January 26, 2011. Skipaskagi, Akranes, Iceland. Photo courtesy of Omar Runolfsson.


Fig 5) This bird is well-marked, but with white primaries. February 3, 2012. Southwest Iceland. Photo courtesy of Omar Runolfsson.

Fig 6) This bird may be at the darker end of the glaucoides spectrum. Yet it still has a small, bi-toned bill and nearly white primaries. February 3, 2012. Southwest Iceland. Photo courtesy of Omar Runolfsson.

These are four different birds, all of which are described as glaucoides by local standards. In Figure 7, note the primaries have a brownish wash, but become paler on the outer primaries, the opposite of the pattern one sees in Thayer's. February 10, 2012. Southwest Iceland. Photo courtesy of Omar Runolfsson.

Fig 7


Fig 9

Fig 8


Fig 10