I have posted a few more photos of the subadult California Gull sporting the black tail from Erie, Colorado (Boulder County) taken on 26 Dec 2009, at the link provided below. Also at this link are photos of other interesting gulls including the youngster Great Black-backed Gull, an adult Lesser Black-backed Gull, an adult Glaucous Gull, Thayer's Gulls, a probable hybrid gull, and a possible adult Vega Gull. Brief background info on Vega Gull status and distribution is provided in the link. Comments welcome. Here is the link: http://www.pbase.com/quetzal/erie_gulls_26_dec_2009.
Note: I have no previous experience with Vega Gull, so I will consult the gull experts on ID Frontiers. If there is concensus for an identity of the candidate Vega Gull, I will inform this list. Also, while only one is photodocumented, from late Saturday afternoon at Erie Reservoir, there were two adults present together at that location Saturday mid-morning. These are gulls that are slightly darker gray-mantled than Herring Gull (like some Thayer's Gulls), dark-eyed (like Thayer's) and but with wing-tips dark like Herring Gulls (i.e. not obviously paler like most Thayer's). Nick Komar Fort Collins CO -- Colorado Field Ornithologists: http://www.cfo-link.org/ Colorado County Birding: http://www.coloradocountybirding.com/ You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.as/group/cobirds?hl=en
