Re: [cobirds] late warblers in CO
Great questions! Christiaan Both (Groningen University) has been examining some of them. See, for example: https://research.rug.nl/en/publications/climate-change-breeding-date-and-nestling-diet-how-temperature-di Willem On Fri, Dec 2, 2022 at 3:44 PM DAVID A LEATHERMAN wrote: > Kudos to Lori Z. in Fort Collins for finding a very late Northern > Waterthrush along the Poudre which was warbler species #19 on my draft list > for CO since November 1, 2022. Brandon and Tyler have added Cape May and > American Redstart, respectively, for a total so far of 21. People fluent > in eBird archives can probably find a palm record for CO since November 1 > and I seem to recall a bay-breasted in nw CO (or was that October?). > > Whatever the total is, it's almost as good as what we get during the > supposed "primetimes" of late May and September. And I'd love to know the > reason for the late flush of these individuals that "didn't get the memo" > about when it's best to migrate. Are they mostly first-time migrants (i.e. > young born last summer) from late-starting first or second nests? Are they > just not wired correctly? Are the late adults we see individuals that > didn't nest at all, or that had failed nests, late nests, or what? I was > sent a NYT article that makes the case for various species of forest > rodents that feed on forest tree seeds in Maine having different > personalities. Why not birds? Are some birds simply procrastinators? Are > more late migrants these days surviving than would have been the case "in > the old days" because current late autumn weather tends to be milder? Do > they pass on this timing to their offspring next summer? Is a > proliferation of urban plantings that support the kind of foods needed to > pull off a late migration part of it? Maybe it just *seems* like there > are more late migrants because more of us are looking than used to be the > case (see David Suddjian's recent graphs of increasing eBird checklists). > Lots of questions begging answers. > > Dave Leatherman > Fort Collins > > -- > -- > You received this message because you are subscribed to the Google > Groups "Colorado Birds" group. > To post to this group, send email to cobirds@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/cobirds?hl=en?hl=en > * All posts should be signed with the poster's full name and city. Include > bird species and location in the subject line when appropriate > * Join Colorado Field Ornithologists https://cobirds.org/CFO/Membership/ > --- > You received this message because you are subscribed to the Google Groups > "Colorado Birds" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to cobirds+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/cobirds/PH7PR12MB73541D62E2884320851D1341C1179%40PH7PR12MB7354.namprd12.prod.outlook.com > <https://groups.google.com/d/msgid/cobirds/PH7PR12MB73541D62E2884320851D1341C1179%40PH7PR12MB7354.namprd12.prod.outlook.com?utm_medium=email_source=footer> > . > -- Willem van Vliet-- -- -- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To post to this group, send email to cobirds@googlegroups.com For more options, visit this group at http://groups.google.com/group/cobirds?hl=en?hl=en * All posts should be signed with the poster's full name and city. Include bird species and location in the subject line when appropriate * Join Colorado Field Ornithologists https://cobirds.org/CFO/Membership/ --- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To unsubscribe from this group and stop receiving emails from it, send an email to cobirds+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/cobirds/CAPySxGaLaOYHPpW7cHMrWUrKQV4KP4mJQy6uaaaLSVArGgdoAw%40mail.gmail.com.
[cobirds] New bird migration website
www.birdmigrationexplorer.org <https://explorer.audubon.org/home?threatOverlay=expand> Some background: https://www.cbc.ca/news/canada/north/bird-migration-1.6584215 -- Willem van Vliet-- Boulder -- -- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To post to this group, send email to cobirds@googlegroups.com For more options, visit this group at http://groups.google.com/group/cobirds?hl=en?hl=en * All posts should be signed with the poster's full name and city. Include bird species and location in the subject line when appropriate * Join Colorado Field Ornithologists https://cobirds.org/CFO/Membership/ --- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To unsubscribe from this group and stop receiving emails from it, send an email to cobirds+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/cobirds/CAPySxGZEEuU%2BSgkzS0ytPeyRcDRP4MdHOFO4sTw5w9zz1iUrxA%40mail.gmail.com.
[cobirds] Northern cardinal, Boulder still present this morning
The Northern cardinal showed himself and briefly sang on the n-w side of Kalmia/22nd St. before flying over to a backyard btwn Kalmia and Linden this morning at 10:45. https://ebird.org/checklist/S106802205 -- Willem van Vliet-- -- -- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To post to this group, send email to cobirds@googlegroups.com For more options, visit this group at http://groups.google.com/group/cobirds?hl=en?hl=en * All posts should be signed with the poster's full name and city. Include bird species and location in the subject line when appropriate * Join Colorado Field Ornithologists https://cobirds.org/CFO/Membership/ --- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To unsubscribe from this group and stop receiving emails from it, send an email to cobirds+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/cobirds/CAPySxGbFH9Y4363yws2SOKiEuXFfwSOhbOfOUd8CmVv%3DCMbXPA%40mail.gmail.com.
[cobirds] Bushtit question
A small flock of bushtits visited our yard yesterday. It was just 5F. When not feeding, they huddled closely together to keep warm, at times in regular head-tail-head-tail order (https://ebird.org/checklist/S103608720 ). I could not detect if there was a pecking order and wonder if they rotate through the position on the outside, taking turns. If so, is it the weakest who are on the outside, losing the competition for the warmest spots on the inside? Or is it the strongest on the outside, protecting weaker ones on the inside? Older birds outcompeting younger ones? Families or pairs in the center and left-over singles on the outside? Females seemed to be more often on the outside. Or is it all just random, first come, first served? Anyone who can shed light on this? Willem -- -- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To post to this group, send email to cobirds@googlegroups.com For more options, visit this group at http://groups.google.com/group/cobirds?hl=en?hl=en * All posts should be signed with the poster's full name and city. Include bird species and location in the subject line when appropriate * Join Colorado Field Ornithologists https://cobirds.org/CFO/Membership/ --- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To unsubscribe from this group and stop receiving emails from it, send an email to cobirds+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/cobirds/CAPySxGa57c30HwNiUhJV%3DyaoTUTvn5gjP%2B%2BzsZKE9ei7SZWcOA%40mail.gmail.com.
[cobirds] Field sparrow Boulder
Late yesterday afternoon and a few times today, a field sparrow momentarily visited our yard in central Boulder, foraging restlessly under a seed feeder. Grainy photos on https://ebird.org/checklist/S96412623. -- Willem van Vliet-- Boulder -- -- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To post to this group, send email to cobirds@googlegroups.com For more options, visit this group at http://groups.google.com/group/cobirds?hl=en?hl=en * All posts should be signed with the poster's full name and city. Include bird species and location in the subject line when appropriate * Join Colorado Field Ornithologists https://cobirds.org/CFO/Membership/ --- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To unsubscribe from this group and stop receiving emails from it, send an email to cobirds+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/cobirds/CAPySxGZNQ7zZykkvU1Fw5AMgjxQm9%2BtKLrXBQAUy0mn3Puk%2BgQ%40mail.gmail.com.
[cobirds] Boulder Bird City?
A former colleague and bird watcher is interested in doing a CU class project in support of making Boulder a Bird City. To avoid duplication of effort, let me know, please, if you are aware of any steps already taken in the qualification process. Thank you, Willem -- Willem van Vliet-- Boulder -- -- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To post to this group, send email to cobirds@googlegroups.com For more options, visit this group at http://groups.google.com/group/cobirds?hl=en?hl=en * All posts should be signed with the poster's full name and city. Include bird species and location in the subject line when appropriate * Join Colorado Field Ornithologists https://cobirds.org/CFO/Membership/ --- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To unsubscribe from this group and stop receiving emails from it, send an email to cobirds+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/cobirds/CAPySxGZyNe%3Dwx2GW%2B4Vc83R8u95v%3DpJMEKus%3DYHgwmTAyVfoKg%40mail.gmail.com.
Re: [cobirds] unusual Mallard behavior?
Surveying the surroundings for places promising food or nesting sites? A couple of years ago, I saw a pair of Canada geese landing on top of the small area above the clock of the County Courthouse in downtown Boulder. They loudly announced their presence, strutted around a bit and took off again, evoking memories of Jonathan Livingston Seagull. On Thu, May 13, 2021 at 11:11 AM JeremyWinick wrote: > Yesterday evening I spotted a pair of Mallards sitting on the apex of a > roof in our neighborhood (Bradburn, in Westminster, Adams County). There > are many Mallards around the Big Dry Creek and nearby ponds, and I have > seen them in the neighborhood, but never "perched" on a rooftop. I only > had my cellphone as a camera, so the resulting picture is poor, but > clearly shows the birds on the top of the roof. Surely not a nesting > spot since the roof falls away steeply . > > Jeremy Winick > Westminster, Adams County > > -- > -- > You received this message because you are subscribed to the Google > Groups "Colorado Birds" group. > To post to this group, send email to cobirds@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/cobirds?hl=en?hl=en > * All posts should be signed with the poster's full name and city. Include > bird species and location in the subject line when appropriate > * Join Colorado Field Ornithologists https://cobirds.org/CFO/Membership/ > --- > You received this message because you are subscribed to the Google Groups > "Colorado Birds" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to cobirds+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/cobirds/ce11439b-d7ea-ea7e-6fee-531e17595c6b%40gmail.com > . > -- Willem van Vliet-- Professor Emeritus Fellow, Community Engagement, Design and Research Center University of Colorado at Boulder -- -- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To post to this group, send email to cobirds@googlegroups.com For more options, visit this group at http://groups.google.com/group/cobirds?hl=en?hl=en * All posts should be signed with the poster's full name and city. Include bird species and location in the subject line when appropriate * Join Colorado Field Ornithologists https://cobirds.org/CFO/Membership/ --- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To unsubscribe from this group and stop receiving emails from it, send an email to cobirds+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/cobirds/CAPySxGbrTxd8wMNedu_6fV-4BG_0nBfFf7HGKa6PtmXQNnF63Q%40mail.gmail.com.
Re: [cobirds] Re: Changing Common Names of birds; example, Steller’s Jay
And, combining erudition with levity, from a Brit with an international perspective: *Mrs. Moreau's warbler: How birds got their names* (Stephen Moss). On Sat, Apr 24, 2021 at 9:22 PM Brian Johnson wrote: > This has been an interesting thread. I have had an interest in the names > behind the bird names. I know of two books that might be of interest for > anyone. > *Who's Bird: Common Bird Names and the People they commemorate* by Bob > Boelens and Micheal Watkins > This book covers the world and includes names up to the time of > publishing, 2004, as we know things have changed since then. It is an > encyclopedia so the entries are brief. Also goes over extinct bird names if > it honors someone. There is also an explanation for how to name birds. > One more local in interest > *Audubon to Xantus: The Lives of those Commemorated in North American Bird > Names* by Barabara Means > Published in 1992 so some bird names have changed, Xantus Murelet has > since been split and is not longer a name for any bird (but Xantus still > has a Hummingbird in Baja California) it has longer entries for the people, > it however only covers birds north of the border. Their is an appendix that > covers birds that are subspecies and birds that were once considered spices > but are now subspecies. This author also has Biographies for Birdwatchers, > which covers the Western Paleartic and includes overlap from the other > book, such as Alexander Wilson, who was from Scotland. > Anyway, I am a librarian so I wanted to offer some books. Both are out of > print however but you can get them used or from your library. > Good reading, good birding > Brian Johnson, > Englewood CO > > On Saturday, April 24, 2021 at 6:57:16 AM UTC-6 mvjo...@gmail.com wrote: > >> Really entertaining dialogue on naming birds, often named for the least >> conspicuous feature. I also love bird names that might be longer than the >> actual bird...like Northern Beardless Tyrannulet. (CuriousIs there a >> Tyrannult with a beard?...My mind is picturing this!!) Along with Hugh's >> disdain for Least (which I agree) would be the boastful and judgement >> laddened "Greater"like Greater Yellowlegs. >> >> John Rawinski >> Monte Vista, CO >> >> On Thursday, April 15, 2021 at 12:30:12 PM UTC-6 rori...@earthlink.net >> wrote: >> >>> >>> Peter the Great,Tsar of all of Russia, invited Georg W. Steller, a >>> German scientist to come to Russia and help explore and catalogue it’s >>> natural history. In 1741 Steller joined the Vitus Bering Expedition in >>> sailing east to discover what was out there. After several weeks they >>> bumped into new land now known as Alaska. Steller discovered a jay, now >>> known as Steller’s Jay. The expedition sailed west exploring the Aleutians. >>> Out of many of Steller’s new discoveries was a new eagle, now known as >>> Steller’s Sea Eagle. >>> >>> Doesn’t the eponymic name Steller’s Jay evoke more romance, interest, >>> and wonder than if it was just called, for convenience, say “Mountain” Jay? >>> >>> Bob Righter >>> Denver, CO >>> >> -- > -- > You received this message because you are subscribed to the Google > Groups "Colorado Birds" group. > To post to this group, send email to cobirds@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/cobirds?hl=en?hl=en > * All posts should be signed with the poster's full name and city. Include > bird species and location in the subject line when appropriate > * Join Colorado Field Ornithologists https://cobirds.org/CFO/Membership/ > --- > You received this message because you are subscribed to the Google Groups > "Colorado Birds" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to cobirds+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/cobirds/8182d371-7abe-4373-a81b-09b39f5971d8n%40googlegroups.com > <https://groups.google.com/d/msgid/cobirds/8182d371-7abe-4373-a81b-09b39f5971d8n%40googlegroups.com?utm_medium=email_source=footer> > . > -- Willem van Vliet-- Professor Emeritus Fellow, Community Engagement, Design and Research Center University of Colorado at Boulder -- -- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To post to this group, send email to cobirds@googlegroups.com For more options, visit this group at http://groups.google.com/group/cobirds?hl=en?hl=en * All posts should be signed with the poster's full name and city. Include bird species and location in t
Re: [cobirds] Vesper Sparrow, Larimer Cty.
*How Do Birds Survive The Winter?* by Bernd Heinrich (with beautiful illustrations by Megan Bishop. Worth reading. https://www.allaboutbirds.org/news/how-do-birds-survive-the-winter/#:~:text=Black%2Dcapped%20Chickadees.-,Black%2DCapped%20Chickadees,blocks%20of%20ice%20in%20seconds . Willem van Vliet Boulder On Sat, Apr 17, 2021 at 10:29 AM Dave Hyde wrote: > Thank you, Deborah, for your suggestion and I’ll keep it in mind. > Fortunately, this morning the Vesper sparrow is back with the juncos. Still > 25 F here with light snow but I can see a patch of blue sky here and there. > Warmer weather has to be coming soon! I guess these little birds, like the > juncos, are survivors and best not to disturb them unless they are in > obvious distress or comatose. I wonder, how do the juncos and other birds > like the Mountain chickadees and Pygmy nuthatches make it through a spell > of cold weather? Well, all’s well that ends well, as they say, and I’ll > just keep an eye on the birds, which is what I do anyway. Thanks again – > Dave/nr. Storm Mountain. Larimer Cty. > > > > Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for > Windows 10 > > > > *From: *Deborah Carstensen > *Sent: *Friday, April 16, 2021 9:31 PM > *To: *Dave Hyde > *Cc: *Colorado Birders > *Subject: *Re: [cobirds] Vesper Sparrow, Larimer Cty. > > > > You could bring him in, perhaps start him in a box with something warm to > bring his temp up. If he perks up he could go in the cage. I think it’s > supposed to be cold tomorrow night too. But if he perks up, acts normally > and seems agitated in the cage, I would let him out when it warms up > tomorrow. > > > > Those are my suggestions. Good luck! > > > > Deb Carstensen, Arapahoe county > > Sent from my iPhone > > > > On Apr 16, 2021, at 7:10 PM, Dave Hyde wrote: > > > > Hello CObirders, > > Perhaps someone can give me some quick advice. At this moment (7 pm) I > have a Vesper sparrow sitting in a little seed bowl under a makeshift cover > to protect it from the snow. There’s seed in the bowl but it looks pretty > miserable. It survived last night – sat in the same spot covered in snow > and I was preparing a rescue attempt when some juncos showed up and it flew > off. Well, here it is again and its 24 F with light snow. I figure I’ll > keep an eye on it and if it nods off I’ll try and bring it in the house and > put it in our spare budgie cage. I dunno, anyone have any advice? – Dave > Hyde/nr. Storm Mtn. > > > > > > Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for > Windows 10 > > > > -- > -- > You received this message because you are subscribed to the Google > Groups "Colorado Birds" group. > To post to this group, send email to cobirds@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/cobirds?hl=en?hl=en > * All posts should be signed with the poster's full name and city. Include > bird species and location in the subject line when appropriate > * Join Colorado Field Ornithologists https://cobirds.org/CFO/Membership/ > --- > You received this message because you are subscribed to the Google Groups > "Colorado Birds" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to cobirds+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/cobirds/CY4PR06MB2440A23D9E67B4F47513E23DF54B9%40CY4PR06MB2440.namprd06.prod.outlook.com > <https://groups.google.com/d/msgid/cobirds/CY4PR06MB2440A23D9E67B4F47513E23DF54B9%40CY4PR06MB2440.namprd06.prod.outlook.com?utm_medium=email_source=footer> > . > > > > -- > -- > You received this message because you are subscribed to the Google > Groups "Colorado Birds" group. > To post to this group, send email to cobirds@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/cobirds?hl=en?hl=en > * All posts should be signed with the poster's full name and city. Include > bird species and location in the subject line when appropriate > * Join Colorado Field Ornithologists https://cobirds.org/CFO/Membership/ > --- > You received this message because you are subscribed to the Google Groups > "Colorado Birds" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to cobirds+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/cobirds/CY4PR06MB24404BD3003D0CD816C1AB9FF54B9%40CY4PR06MB2440.namprd06.prod.outlook.com > <https://groups.google.com/d/msgid/cobirds/CY4PR06MB24404BD3003D0
Re: [cobirds] Changing Common Names of birds; example, Steller’s Jay
Robin Wall Kimmerer (Braiding Sweetgrass) has argued insightfully for a “grammar of animacy” that challenges Western tenets of naming. Learning the Potawatomi language that her grandfather was forbidden to speak, she finds out that the Hudson River was originally called “the river that runs both ways” (because of the tidal action). She cites Krista Tippett: “The words we use shape how we understand ourselves, how we interpret the world, how we treat others. Words make worlds” (Becoming Wise). Indigenous languages use verbs and pronouns to name non-human animals, including birds, to describe and respect their relationships to us and the wider ecosystem, often incorporated in stories (e.g., Steller’s jays hopping up trees to see danger better). Willem van Vliet Boulder On Fri, Apr 16, 2021 at 10:56 AM 'Hugh Kingery' via Colorado Birds < cobirds@googlegroups.com> wrote: > I have another gripe with common names: I dislike ones that demean the > bird: Lesser Yellowlegs, Least Flycatcher. > > Would you like us to call you the Least Birder, or a Lesser Observer? > > Hugh > > -- > -- > You received this message because you are subscribed to the Google > Groups "Colorado Birds" group. > To post to this group, send email to cobirds@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/cobirds?hl=en?hl=en > * All posts should be signed with the poster's full name and city. Include > bird species and location in the subject line when appropriate > * Join Colorado Field Ornithologists https://cobirds.org/CFO/Membership/ > --- > You received this message because you are subscribed to the Google Groups > "Colorado Birds" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to cobirds+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/cobirds/1492993338.2002229.1618592205275%40mail.yahoo.com > <https://groups.google.com/d/msgid/cobirds/1492993338.2002229.1618592205275%40mail.yahoo.com?utm_medium=email_source=footer> > . > -- -- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To post to this group, send email to cobirds@googlegroups.com For more options, visit this group at http://groups.google.com/group/cobirds?hl=en?hl=en * All posts should be signed with the poster's full name and city. Include bird species and location in the subject line when appropriate * Join Colorado Field Ornithologists https://cobirds.org/CFO/Membership/ --- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To unsubscribe from this group and stop receiving emails from it, send an email to cobirds+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/cobirds/CAPySxGbK7WzNWUvkF6Fd1BPuPezFFkMdLGCaxYVo8dCsTJUS7g%40mail.gmail.com.
[cobirds] Loggerhead shrike, Boulder
This afternoon there was a Loggerhead shrike at Walden Ponds, Boulder. Also a red-breasted merganser, all 3 teals, 13 Wilson's snipe, 13 Hooded mergansers (all but one females; or males in non-breeding plumage?), 3 Common mergansers, among others. Lots of fly-overs just before wet snow started falling, including small flocks of pelicans and robins, arriving steadily at irregular intervals, and five Wilson's phalaropes. https://ebird.org/checklist/S85627487 Willem van Vliet- Boulder -- -- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To post to this group, send email to cobirds@googlegroups.com For more options, visit this group at http://groups.google.com/group/cobirds?hl=en?hl=en * All posts should be signed with the poster's full name and city. Include bird species and location in the subject line when appropriate * Join Colorado Field Ornithologists https://cobirds.org/CFO/Membership/ --- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To unsubscribe from this group and stop receiving emails from it, send an email to cobirds+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/cobirds/CAPySxGbcSJeKC7xdtV9H_-Ge3D0eVgXcWOUzAQX_CwRi9DJNug%40mail.gmail.com.
[cobirds] Red-naped sapsucker, Boulder
This morning I saw a red-naped sapsucker at Boulder's Community Garden, s-e corner. https://ebird.org/checklist/S84289325. Thanks to David Tonnessen for help with the ID. Willem van Vliet-- Boulder -- -- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To post to this group, send email to cobirds@googlegroups.com For more options, visit this group at http://groups.google.com/group/cobirds?hl=en?hl=en * All posts should be signed with the poster's full name and city. Include bird species and location in the subject line when appropriate * Join Colorado Field Ornithologists https://cobirds.org/CFO/Membership/ --- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To unsubscribe from this group and stop receiving emails from it, send an email to cobirds+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/cobirds/db5e6d22-d01d-4b9f-a4d2-833377063cc0n%40googlegroups.com.
[cobirds] Re: So Long McCown's Longspur, Hello Thick-billed Longspur
For delightful and informative coverage of the origin of bird names, see "Mrs. Moreau's Warbler" by Stephen Moss. He wraps erudite sources into engaging stories showing that how we name birds tells as much or more about ourselves as about the birds we baptize. Willem van Vliet-- Boulder On Wednesday, August 12, 2020 at 4:57:46 PM UTC-6, Richard Trinkner wrote: > > Forgive me if this has already been covered on Cobirds. I don't recall > seeing it's discussion. > > The AOU decided last Friday to rename the > bird-fomerly-known-as-McCown's-Longspur to the Thick-billed Longspur. I > personally had not realized how controversial the bird's former namesake > was. > > > https://www.birdwatchingdaily.com/news/science/mccowns-longspur-renamed-thick-billed-longspur/ > > I would imagine we'll be seeing the change in eBird soon. > > Richard Trinkner > Boulder > -- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To unsubscribe from this group and stop receiving emails from it, send an email to cobirds+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/cobirds/5c0b31b6-8ece-4a35-81c6-89d8f88f7349o%40googlegroups.com.
[cobirds] Question about song of Colorado white-throated sparrows
A study, just published, shows the progressive eastward adoption of a doublet-ending song among white-throated sparrows, replacing the traditional triplet ending. The researchers found that birds from different dialect groups overwinter together and suggest song tutoring during this time is a facilitating factor ( https://www.cell.com/current-biology/pdf/S0960-9822(20)30771-5.pdf?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS0960982220307715%3Fshowall%3Dtrue ). Is there any information on how white-throated sparrows in Colorado fit into this trend? Willem van Vliet-- Boulder County -- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To unsubscribe from this group and stop receiving emails from it, send an email to cobirds+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/cobirds/ca96fe83-5ff0-4bfd-90db-a70decb4e6a2o%40googlegroups.com.
[cobirds] Dawn chorus project
Share your recorded bird songs. Last day to submit to the Dawn Chorus Project: https://dawn-chorus.org/en/ Would be nice to have Colorado data included. Willem van Vliet Boulder -- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To unsubscribe from this group and stop receiving emails from it, send an email to cobirds+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/cobirds/08c7c8b6-8421-40a7-bf7b-ff8e0f39f34d%40googlegroups.com.
[cobirds] FOS Lazuli bunting, Central Boulder
Male in full breeding plumage. FOS for this location in past years ranged between May 1 (2016) and May 7 (2019). Willem van Vliet-- Boulder -- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To unsubscribe from this group and stop receiving emails from it, send an email to cobirds+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/cobirds/09105e4f-a1e3-4496-9efd-d05250e36f85%40googlegroups.com.
[cobirds] Re: 3 Broad-winged Hawks, Boulder, 4/18
One broad-winged hawk at 16:15, initially readily identifiable and then soaring above the Flagstaff amphitheatre to a very great height till I could barely make out its silhouette (with 10x42 binos). Willem van Vliet-- Boulder On Saturday, April 18, 2020 at 4:52:26 PM UTC-6, Robert Raker wrote: > > I had a similar experience down at Platte Canyon Reservoir, 2 Osprey, 2 > Broad-winged Hawks, 12 Turkey Vultures and a Bald and Golden Eagle thrown > in for good measure. > > Robert Raker > Lakewood, CO > > On Saturday, April 18, 2020 at 11:25:25 AM UTC-6, tehei...@gmail.com > wrote: >> >> Seems a good day for raptor migration: >> Just had an Osprey, 3 Broad-winged Hawks, and group of 6 Turkey Vultures >> over my house below Mt Sanitas in Boulder. Also have had two Red-tailed >> Hawks, several Cooper’s and Sharp-shinned, and a falcon sp. A flock of 12 >> White-throated Swifts was over the Newlands neighborhood. >> >> >> Thomas Heinrich >> Boulder, CO >> nyc...@aol.com > > -- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To unsubscribe from this group and stop receiving emails from it, send an email to cobirds+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/cobirds/0ea3cd4c-ab5e-43f5-a384-118cc496ec93%40googlegroups.com.
