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Barrow's Goldeneye (Bucephala islandica), Surprise Community Park, Maricopa CountyThis Barrow's Goldeneye was
found by Brian Johnson on 30 January 2016 and photographed by
Robert Bowker on 01 February 2016 Seemingly
injured bird tangled with fishing line.
Casual in winter away from the Colorado River
where it still occurs primairly below Glen Canyon Dam
and in the Bill Williams Arm of Lake Havasu. This may
only be a third Maricopa County record.
Identification of female goldeneyes can be
difficult. Like most bird species, it is helpful to age
an individual first, which we can do here. The bird is
an immature because of the dull eye color and lack of
black tips to most of the greater coverts. Features to
note include the rounded head with a steep forehead,
flat top and "mane", deeper bill base giving it a
stouter and stubbier look with a rounded lower edge and
raised nail, and the yellow tipped bill that extends
past the nares and along the lower manidble (hard to see
in these photos). Bill coloration is variable in both
species of goldeneye and some may not show the "classic
look". This is especially true of immatures which may
not get full yellow bills until February and is why
multiple features are often needed for a potentially out
of range Barrow's Goldeneye. See also this article by
David Sibley for more information on identification.
01 February 2016, photo by robert bowker All photos are copyrighted© by photographer |
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Submitted on 02 February 2016 |
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