Boyd Pond Swans

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Steven Mlodinow

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Mar 2, 2014, 5:36:28 PM3/2/14
to Colorado Birding
Greetings
I and blaming it on sleep deprivation and frozen brain this morning. Yes, trumps are darker and turn white later. Thus, the Boyd Pond birds were correctly identified as Trumps. I still do not understand the Blackfeet, as trumps are supposed to continue having pale feet through their first year of life. Nonetheless, these were correctly identified, and I apologize for any consternation I may have caused
Steven Mlodinow
Longmont Colorado

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Glenn and Laurie

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Mar 2, 2014, 5:50:06 PM3/2/14
to SGM...@aol.com, Colorado Birding
Folks,

I have posted some pics of swans on my photo page, including a family group
of Trumpeters from February 2009 in Broomfield. To my eye, the juvi (and
the adult birds) look different than the Boyd birds, with longer bill and
'connected eye' to the lores and bill. This give less of an impression of
an isolated eye. Of course this all means nothing if my 'comparison' birds
are incoreectly ID'd. Comments welcomed.

http://www.pbase.com/gwalbek/2014_birds

Glenn Walbek
Castle Rock, CO

Steven Mlodinow

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Mar 2, 2014, 8:15:53 PM3/2/14
to Glenn and Laurie, Colorado Birding
Greetings All
So, one prob is that the facial feathering pattern is of limited utility in young birds. Some young Trumps look as if the eye is totally surrounded by feathers. And I think in your comparison Glenn, you are comparing an adult (certainly a white-headed bird, so a bird with an adult like head) to one of the youngsters at Boyd. The facial pattern between ads and young are quite different (sorry for the repetition) and adults average larger billed. I guess that by March, a minority of Trumps can have black legs. Tomorrow eve I will put up for public viewing some of my Trump shots from WA. I really did blow it this morning, reversing Trump and Tundra molt schedules. I guess led on by the black feet. Shows that experience is not an absolute shield from stupidity.
Cheers
Steve M

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