Re: [cobirds] status of Red-backed Junco in Colorado

2013-04-01 Thread Nathan Pieplow
Song also differs between these subspecies, with Red-backed birds in northern Arizona singing more complex songs on average (slower trills, often 2-3 trills per song, often with 1-2 non-trill notes at start or end) than our Gray-headed Juncos in Colorado. In general there is a gradual transition

RE: [cobirds] status of Red-backed Junco in Colorado

2013-04-01 Thread Christian Nunes
NunesBoulder, CO pajaro...@hotmail.com From: daleather...@msn.com To: peterbu...@gmail.com; cobirds@googlegroups.com Subject: RE: [cobirds] status of Red-backed Junco in Colorado Date: Sun, 31 Mar 2013 22:21:12 -0600 Peter et al, The bird at Red Rocks was photographed by Steve Mlodinow, not me

RE: [cobirds] status of Red-backed Junco in Colorado

2013-04-01 Thread DAVID A LEATHERMAN
I very much appreciate Steve Mlodinow, Doug Faulkner, and Christian Nunes responding to my request for info on Red-backed Junco. Dave Leatherman Fort Collins From: pajaro...@hotmail.com To: cobirds@googlegroups.com Subject: RE: [cobirds] status of Red-backed Junco in Colorado Date: Mon, 1 Apr

[cobirds] status of Red-backed Junco in Colorado

2013-03-31 Thread DAVID A LEATHERMAN
The other day, buried amid a mixed-subject post, I asked (so far unanswered) if anyone on this listserv knows whether the so-called Red-backed Dark-eyed Junco has occurred in Colorado and/or whether it has any history whatsoever of occurring outside its normal range of Arizona to West Texas.

Re: [cobirds] status of Red-backed Junco in Colorado

2013-03-31 Thread Doug Faulkner
David, The Colorado Bird Records Committee does not have any record for that subspecies and I am unaware of any extralimital reports for other states north of its range. My understanding is that Red-backed Junco does very little (if any) seasonal movement in a way that would be considered

Re: [cobirds] status of Red-backed Junco in Colorado

2013-03-31 Thread Peter Burke
Doug Cobirds, Since we're on the topic of Red-backed vs. Gray-headed Juncos, the field mark I've been relying on is bill color: single color for Gray-headed, bi-colored in the case of Red-backed. My question is whether this character is diagnostic or not? The Junco David photographed at Red Rocks

RE: [cobirds] status of Red-backed Junco in Colorado

2013-03-31 Thread DAVID A LEATHERMAN
:06:26 -0600 Subject: Re: [cobirds] status of Red-backed Junco in Colorado From: peterbu...@gmail.com To: zebri...@gmail.com CC: cobirds@googlegroups.com Doug Cobirds,Since we're on the topic of Red-backed vs. Gray-headed Juncos, the field mark I've been relying on is bill color: single color