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Species, Date, Time and Location Information
12/18/2015 3:50:00 PM
12/18/2015 4:30:00 PM
Duration (total time in view):
large reservoir near landfill
scope, binoculars, camera
as close as 300 feet
full sun late in the day, bird viewed from multiple angles
Description of the Bird
bird seen on water with Ring-billed Gulls, Herring Gulls, and Canada Geese, and then seen in flight
size between that of Ring-billed and Herring Gulls
gray color of upperparts similar to that of Ring-billed and Herring Gulls
"dainty" appearance with "cute" round head
pale iris (comparable to Ring-billed Gulls)
small yellow bill with red gonys spot
some streaking on head and neck
folded primaries mostly white with some pale/medium gray markings (somewhat washed out in photos)
wingtips in flight mostly pale with very limited gray along edges and near tips of primaries
bird looked much like that in Howell and Dunn's photo 35A.5
Similar Species Discussion
Thayer's Gull would have dark iris and black markings on primaries.
Glaucous Gull would be larger, larger-headed, larger-billed, and with no gray markings on primaries.
Howell and Dunn Gulls of the Americas
Sibley Guide to Birds
four years of experience observing gulls, including Iceland (Kumlien's), Thayer's, and Glaucous Gulls
Notes made DURING observation
Date Documentation Submitted
12/23/2015 9:20:00 AM
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