Re: [cobirds] late warblers in CO

2022-12-04 Thread Peter Burke
Dave, As if you willed it, a Palm Warbler was reported from a private residence in Boulder County this morning. On Sat, Dec 3, 2022 at 8:34 PM DAVID A LEATHERMAN wrote: > Two additions (hooded and bay-breasted) bring the total species of > warblers in CO since November 1, 2022 to *23*. That is

[cobirds] late warblers in CO

2022-12-03 Thread DAVID A LEATHERMAN
Two additions (hooded and bay-breasted) bring the total species of warblers in CO since November 1, 2022 to 23. That is pretty remarkable. "Misses" (with a small "m") from the 2022 list would seem to be palm and blackburnian, as they have occurred more than once late in previous years. Dave

Re: [cobirds] late warblers in CO

2022-12-02 Thread Willem van Vliet
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

Re: [cobirds] late warblers in CO

2022-12-02 Thread Todd Deininger
Palm Warbler, Nov 13, 2011 Boulder City On Fri, Dec 2, 2022, 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

Re: [cobirds] late warblers in CO

2022-12-02 Thread Marty W
Thank you as always, Dave Leatherman! I (and so many) always love your observations, photos, explanations & information, and especially (as here) your musings & speculations (based as they are on science and an experienced, open & inquiring mind)!! Always sharp & insightful. Marty Wolf NW CO

[cobirds] late warblers in CO

2022-12-02 Thread DAVID A LEATHERMAN
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

[cobirds] late warblers in CO

2022-12-01 Thread DAVID A LEATHERMAN
By my count, Colorado has hosted at least 19 species of warblers since November 1st. I probably missed one or two. The list jotted down includes (in no particular order): prothonotary black-and-white northern parula yellow-rumped chestnut-sided yellow-throated pine Nashville Townsend's common