Clip Posted September 17, 2018 Share Posted September 17, 2018 (edited) Hi, Flycatchers I have birding a long time and they still all look so much alike to me. I'm hoping for some help on this one taken 9-15-18 in NE Colorado. Thank in advance! https://imgur.com/a/4Pe5csJ Edited September 17, 2018 by Clip Quote Link to comment Share on other sites More sharing options...
Clip Posted September 18, 2018 Author Share Posted September 18, 2018 Bump Quote Link to comment Share on other sites More sharing options...
psweet Posted September 18, 2018 Share Posted September 18, 2018 Looks like one of the Empidonax flycatchers -- they all do look alike! Quote Link to comment Share on other sites More sharing options...
Clip Posted September 18, 2018 Author Share Posted September 18, 2018 16 minutes ago, psweet said: Looks like one of the Empidonax flycatchers -- they all do look alike! Does this mean you can't help? I do have other photos at different angels. Quote Link to comment Share on other sites More sharing options...
psweet Posted September 18, 2018 Share Posted September 18, 2018 Well, very gray tone appears to rule out Cordilleran (and Yellow-bellied). The mostly dark lower mandible doesn't fit Traill's. The short primaries aren't really right for Hammond's (or Acadian). The wingbars and tertial edges seem rather dull, although they don't appear very worn -- that would seem to rule out Least. And there's too much dark on the bill for Gray, which leaves us with a tentative (always with silent Empids, often even in hand) Dusky. 1 Quote Link to comment Share on other sites More sharing options...
Tony Leukering Posted September 20, 2018 Share Posted September 20, 2018 The very long tail (assisted by the short primary projection) rules out all but Dusky and Gray. The bill pattern rules out Gray, leaving Dusky, which is - far and away - the most-common Empidonax on Colorado's plains in fall after early August. 1 Quote Link to comment Share on other sites More sharing options...
Tony Leukering Posted September 20, 2018 Share Posted September 20, 2018 https://cobirds.org/CFO/ColoradoBirds/InTheScope/54.pdf 1 Quote Link to comment Share on other sites More sharing options...
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