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After the Tropical Audubon bird walk this morning, most of us headed up to
look for the Glaucous Gull.  It was present at the lake N of the landfill
and W of Powerline Rd., about a mile or so N of Sample Rd.

It is a 1st winter Glaucous Gull (note the dark eyes; also, although not
completely definitive, the absence of a yellow or whitish bill tip points
to 1st winter).  Note that gulls bleach over the winter, and the lack of
obvious buffy marks on the upperparts is pretty meaningless by now.
IIRC, the buffy marks can be surprisingly hard to see at a distance even
when present, doubly so in bright sunlight.

In this case, Sibley's book is not helpful for aging the gull.  I
consulted P.J. Grant's gull book.

--
John H. Boyd III                               [log in to unmask]
Dept. of Economics                             Phone: 305-348-3287
Florida International University               Fax: 305-348-1524
Miami, FL 33199                                http://ecojb.fiu.edu/