Greetings All All eBird reports pertain to the male as far as I could tell Steve M
Sent from my iPhone > On Nov 11, 2013, at 12:36 PM, "Brandon K. Percival" <[email protected]> > wrote: > > > There are photos of two Black-throated Green type Warblers (not just one) at > Two Buttes Reservoir over that weekend. One male and one female. > > Brandon Percival -- Pueblo West, CO > > > From: Steven Mlodinow <[email protected]> > To: [email protected] > Sent: Sunday, November 10, 2013 3:45 PM > Subject: [cobirds] May 2013 Two Buttes BT Green Warbler > >> Greetings All >> >> Tony Leukering and I were reviewing photos for this spring's North American >> Birds' column and happened upon a surprise. >> >> Upon studying photos of this May's Two Buttes Black-throated Green Warbler, >> it became apparent the bird is actually a Black-throated Green x Townsend's >> Warbler hybrid. The range of these two species approximate each other >> closely in NE British Columbia and may (in reality) overlap. Features of >> this bird pointing towards hybrid are >> >> 1) Yellow below black chest >> 2) Darker than normal cheek patch >> 3) Streaking on the undertail coverts >> 4) And more streaking than normal for Black-throated Green on back >> >> I understand -- the bird had the typical black throat patten of a BT Green. >> When I saw that classic throat pattern, I didn't look much further... >> especially with GC Thrush, Philly Vireo, Cape May Warbler, Summer Tan, BTB >> Warbler and an abundance of other rarities in the vicinity. >> >> A rather similar bird was seen on the Texas Coast in April 2011 and is >> widely considered to be a Townsend's x BT Green Warbler. The video can be >> seen at http://www.youtube.com/watch?v=9SLSsfB7GcI >> >> Some have suggested that this cross may be more regular than thought. There >> have been two sightings of probable Townsend's x BTGN Warbler in CO >> previously, but without photographs. >> >> For an excellent photos displaying most of the above marks, go to: >> http://www.pbase.com/gwalbek/image/150130138 > > In any case, note that the Two Buttes bird will be considered a hybrid on > eBird.... so feel free to change your list to such, but Black-throated Green > Warbler will not be considered a valid ID for that bird. In reality, it was > something far more marvelous... just wish that I'd realized it at the time. > > > Good Birding > Steve Mlodinow > Longmont, CO > -- -- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/cobirds/7F10ED12-2C1E-4DED-87E9-7505CBE7B364%40aol.com. For more options, visit https://groups.google.com/groups/opt_out.
