January 16th, 2006. East Providence, RI.
Mew Gull Larus (canus) - form uncertain. (Adult winter).
Shai Mitra captured these images on January 16th, the day before my visit to East Providence. To date, the first is one of the better images that we have showing the primary pattern relatively well. Although suffering from strong backlighting, the images reveal some very interesting details and I’ve attempted to count and caption the primaries on the first cropped image below.
 Image appears courtesy of Shai Mitra.






Within the information included under ‘Kamchatka Gull’ in “Gulls of North America, Europe and Asia’ by Olson and Larsson, is the following snippet;
 
“P8 black grading to grey at base. Shows conspicuous white tongues on P5 -7 (8); rarely as prominent as in Mew on P8. P4 frequently with dark markings”.  The text from the same guide also mentions that L.c.heinei can show “dark markings near the tip of P4”. If nothing else, the pattern must surely show that the bird, as Shai Mitra put it , “CLEARLY favors an Old World taxon”.

At this stage, you might want to reserve your own judgement as to what this primary pattern actually reveals, but it certainly adds another intriguing piece to this very interesting puzzle.

*Special thanks go to Shai Mitra for allowing me to use these images on the Keenbirding website.

Although this shot is suffering from the strong backlighting, the pattern on the tips of
P6 and P5 on the left wing is quite neatly defined.



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