[cobirds] RFI: Rocky Mountain Pygmy Owl Recordings

Hi All, I am currently searching for recordings of pygmy-owls that were recorded in the southern rocky mountains. Importantly, I need recordings that were not a response to playback (spontaneous calling). If you have any of those recordings that are not on eBird or Xeno-canto, I would really

[cobirds] Request for House Wrens

Hi CoBirders, I am a Masters student at CU Boulder and I am studying House Wrens. My study relates to different populations of House Wrens and their relation to elevation. To fully sample the eastern slope of the Rocky Mountains, I need to find a *privately owned* home that has House Wrens

[cobirds] Potential year for Black-chinned Sparrows

Hi all, I was just in Canyonlands NP in Utah, and there were a significant amount of Black-chinned Sparrows present along some of the creeks there. This is unusual for the area, so we may have a year where Black-chinned Sparrows are breeding further north than usual. If there are some birders

[cobirds] Slaty-backed no, Glaucous-winged yes, @Black Hollow Reservoir, Weld County

Hi All, While fruitlessly searching for the Slaty-backed Gull reported this morning at Black Hollow Reservoir, Nathan Pieplow and I stumbled upon a Glaucous-winged Gull. Photos should be up on eBird shortly. As mentioned previously, it is hard to view the reservoir, with best viewing from on

[cobirds] Northeast Colorado 3/20/21

Hi All, A few friends and I went up the NE Colorado today, spending most of our time at Prewitt Reservoir and Jackson Lake. We had a pretty good assortment of birds, with some notable highlights. I am going to give a quick trip report and link the eBird checklists from each spot we birded. We

[cobirds] Re: Mexican Duck at Cherry Creek SP?

Hi Gary, That bird looks like a hybrid, and has been called a hybrid by a lot of the experts on the subject. Features like the green on the head, lighter belly, white tail, and curled upper tail coverts all point to it being a hybrid. I believe that David Tønnessen posted a very

Re: [cobirds] Chatfield Horse Stables Off Limits

Hi All, Consistently breaking rules and not informing others of the rules for viewing this sparrow could easily lose birders access, so lets all try to follow the rules that were so clearly posted here by Joey so others can continue to appreciate this bird! Having a good relationship with the

[cobirds] Frigatebird at John Martin

Hi All, I don't want to step on the observers toes, but there was a Magnificent Frigatebird photographed at john martin reservoir today, apparently over the dam. Hopefully some people can make it there and see it before sunset! Will Anderson Boulder -- You received this message because you

[cobirds] Re: "Small gull with M pattern"

Hi All, I think the description of a dark M on the back for a juvenile Sabine's gull makes perfect sense, and is both helpful and descriptive for newer birders. It is a common term when used in relation to Sabine's Gulls in juvenile plumage, and I see no need for a change of the lexicon.

Re: [cobirds] Purple Finch - Broomfield

Hi All, I think the streakyness is subjective, as I think Chris's photos show a more blurry set of streaks than I would expect on Cassin's Finch. I think the bill shape, being stubby and very thick, is different than I would expect on a Cassin's finch. The facial pattern seems to be stronger

[cobirds] West Slope Birding 10/23/20

Hi All, Luke Pheneger and I drove out to see the Ruddy Ground Dove in Norwood today. We were able to put eyes on it around 8:45 am, and it stayed in the area for about 10 minutes before flying off to the east. There is a house with a bunch of feeders about a block east of George's house that

[cobirds] Philadelphia Vireo in Boulder County

Hi All, Ernest Crvich found a PHILADELPHIA VIREO this morning at Pleasant View Marsh in Boulder County this morning. The bird continued today at 2:40pm, but hasn't been seen since, as far as I know. It was being seen along the path between the marsh and 30th street. Thanks, Will Anderson