Peter,
Your Other guy looks very much like the offspring of the breeding of Black and Eastern Phoebes I have observed for more than a decade in the Canon City area. If you are interested I have photos of a some of them on my Birds and Nature blog.If you haven't seen it you can check out more of my photos as well as Nathan Pieplow's excellent discussion of vocalizations of these hybrids in the article, "The extent of hybridization between Black and Eastern Phoebes", that he and I co-authored in Colorado Birds.
On Sat, Apr 15, 2017 at 9:32 PM, Peter Burke <peterburke@gmail.com> wrote:
Cobirders,As Peter Gent described, we had quite the phoebe show up in NE Boulder County, with Say's, Eastern and a third individual. I've posted photos of the two Eastern Phoebes and several shots of the other guy, which may be a light male Black Phoebe, or potentially a hybrid Black X Eastern Phoebe. Things that made us consider a hybrid include the light color of bird's head -- not the jet black of a typical male Black Phoebe. There was also a faint suggestion of some white or at least light coloring near the throat. And most interestingly, the bird was initially singing the one-note song of a Black Phoebe, but later was observed attempting the two-note Eastern Phoebe song.I'd be very interested to learn what others make of this bird.
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