Thats a nice remembrance about Joe.
Cheers, Bob
On Dec 3, 2020, at 1:20 AM, cobirds@googlegroups.com wrote:
- Joe Roller sad news - 1 Update
- Swan at Barr Lake, Adams County - 1 Update
- Volunteers Needed for the Colorado Birding Trail - 1 Update
- Crowley County - 2 Updates
- CFO Presents - Audubon's Christmas Bird Count in a Pandemic Dec. 5th - 1 Update
- Northern Parula in December - 5 Updates
- Lesser Goldfinch + Rabbitbrush - Arapahoe - 1 Update
- Roller Services Link - 1 Update
Ira Sanders <zroadrunner14@gmail.com>: Dec 02 10:54PM -0700
On the afternoon of Friday, November 18, 2010, as I was driving Tammy to a
doctor's appointment for outpatient surgery, I got a call from Joe about a
rare bird that started something like "whatever you are doing, drop it and
get to Cherry Creek Res RIGHT NOW. Don't ask questions, just go." Joe was
always good about getting the word out on good birds but tended to get a
little worked up about the urgency of getting there when calling with the
news. I told him my situation and he said to "drop Tammy off at the
hospital, she won't mind and go back later and get her." He then told me
it was the Ross's Gull and I needed to get to Cherry Creek NOW. Being a
Dr., I'm sure he figured I didn't really need to be there for the surgery
and she'd understand. Very pragmatic. That was Joe. He then hung up and
I discussed the situation with Tammy who had heard the conversation. She
said I could drop her off as she knew how rare the gull is, but after a
moment's thought, I went to the hospital and stayed there with her.
The next day I got to Cherry Creek early and saw the gull and saw Joe and
thanked him. He said I took a chance on the bird still being there. I
said I know but added at least I was still married and avoided a fight.
Tammy got the bird on Monday.
Ira Sanders
Golden, CO
--
Ira Sanders
Golden, CO
"My mind is a raging torrent flooded with rivulets of thought cascading
into a waterfall of creative alternatives."
"Johnson, Candice E., MD." <Candice.Johnson@childrenscolorado.org>: Dec 03 02:07AM
.
Today Tim and I braved the 23 degree temperature & scoped Barr Lake at about 8:30 am. Sorry for the late post. Near the flock of 45 Pelicans across the lake to the west was a swan, swimming alone. It had a small yellow area on its face in front of the eye, with a black bill, but U vs. V shape could not be determined at this distance. Probably the yellow area makes it a Tundra Swan, but I hope others can confirm this. Also of note were at least 24 Bald Eagles, clustered near one another on the ice in the center.
Candice Johnson, Denver
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Rachel Kolokoff Hopper <r-hopper@comcast.net>: Dec 02 06:55PM -0700
Colorado Parks & Wildlife is looking for volunteers. Here is the job description:
https://drive.google.com/file/d/1rNIdVEo1Zo60una3QuHNCOaxFCRixvdr/view?usp=sharing
Sent from my iPhone
www.rkhphotography.net
Rachel Kolokoff Hopper
Ft. Collins
Tom Wilberding <twilberding@comcast.net>: Dec 02 04:59PM -0800
Hello birders,
No rarities to report, but if you're thinking of looking for birds near
Ordway, Sugar City, or Lake Meredith you might want to wait a while.
Crowley County is the worse county in the U.S. for the past week for
covid-19, per capita. Bent County also in the top ten.
Tom Wilberding
Littleton, CO
Charlie Chase <charlesachase3@gmail.com>: Dec 02 06:20PM -0700
Puts the brakes on an Arkansas River valley trip. Thanks for the heads up
Tom. The RM Arsenal it is for the weekend.
Charlie Chase
Denver
On Wed, Dec 2, 2020 at 5:59 PM Tom Wilberding <twilberding@comcast.net>
wrote:
Nicholas Komar <quetzal65@comcast.net>: Dec 02 05:57PM -0700
Dear Birders, this Zoom meeting will be an opportunity for CBC compilers to announce your plans/needs and for counters to ask questions about the status of your favorite CBC this year. I encourage you all to pre-register so we know how many of you to expect. Tune-in also for news from CFO. This event will be recorded.
Nick Komar, President
Colorado Field Ornithologists
Begin forwarded message:
Brandon <flammowl17@gmail.com>: Dec 02 02:03AM -0700
Pueblo County is up to 17 species of warblers now thst have been seen
during December to February. Pretty amazing total. Most have been since
the 1990s.
Brandon K. Percival
Pueblo West, CO
Sent from my Android
Bryan Guarente <bryan.guarente@gmail.com>: Dec 02 07:57AM -0700
Gregg and others,
I would love to hear whether the Parula and Pine Warbler stuck around after
the cold frontal passage last night. I doubt the temperatures would be the
problem. The snow could cause food gathering issues. The winds are
appropriate for migration southward, but I don't know whether the "need" to
migrate is still there. Hormonally, There must be a point in every bird
that they don't feel like they need to migrate anymore. These birds will
be interesting case studies from both the perspective of Dave Leatherman
and from Bryan "Weatherman". Bad joke... moving on.
Keep us informed.
Thanks,
Bryan
Bryan Guarente
Meteorologist/Instructional Designer
UCAR/The COMET Program
Boulder, CO
DAVID A LEATHERMAN <daleatherman@msn.com>: Dec 02 09:49PM
I almost responded to this issue yesterday when Gregg brought it up, and I will now.
Sub-freezing temperatures are rarely an issue for birds unless they are extreme, take away the availability of free water or coincide with conditions that got a bird's feathers wet. When feathers are dry the literature says they can result in as much as an 80-degree difference in air temp compared to that under the feathers next to the skin. In other words, it could be -20 outside and 60 right next to the skin. That data comes from the famous ecologist Ernst Mayer's work in Maine with thermistors and a golden-crowned kinglet. Cute little birds get counted every year on the Nome, Alaska CBC. Ducks move on not because the water is cold but because the surface freezes and takes away their ability to tip or dive and obtain food.
As Brian said, the biggest issue with birds and the onset of significantly colder weather is generally decreased food availability (and the issue of liquid water). A lot of the birds we get excited about seeing in early winter are neotropical migrants that for whatever reason are still passing thru or even lingering. These late insectivores still rely on insects, especially insect types with chemistry that suppresses their freezing temperature (usually involving glycols) and insect cadavers. Also, most neotropical migrants also have dietary flexibility that allows exploiting fruits. and when all else fails, can lower their standards and engage in desperate measures like scavenging and stealing. Midges, such as what the Bay-breasted Warbler at the Fountain sewage plant must be getting, or aphids and scales (Tennessee, Black-throated Green, Pine, Northern Parula and Black-throated Blue lately along the middle Front Range) make up the bulk of what cold weather insectivores can still find and rely on. But we also have species of grasshoppers that overwinter as adults, and even certain moths and butterflies, flies, ichneumonid wasps, leafhoppers, etc. can be active in temps as low as 45 degrees. Then there are always back-up foods like the contents of galls, cocoons, spider webs and egg sacs, feeders with suet, etc. Birds are simply amazing in coping, of course, within the limits all life forms have.
It was this time of year in 2013 when we had 10 species of warblers on the Colorado RBA. One of them was a Northern Parula in Boulder that along with the famous Bay-breasted and some yellow-rumps was sustaining itself on aphids from one particular Austrian Pine. I took pics of it on 16November2013 but believe it made it into early December. Apparently none of us entered this individual into eBird if Gregg says there are no records from the Denver to FC area for early December. That brings up another misconception, that being the notion eBird is a complete record of all that is known. Far from it, but I'll leave it at that.
Anybody checking the Denver West Office Park? Interlocken? 28th e of Baseline in Boulder? Bow Mar apartment complex in Littleton? Longmont neighborhood e of Hover s of Nelson? No doubt many other aphid-scale-midge "food courts" like the one Joey just found near Chatfield exist out there.
Dave Leatherman
Fort Collins
________________________________
From: cobirds@googlegroups.com <cobirds@googlegroups.com> on behalf of Bryan Guarente <bryan.guarente@gmail.com>
Sent: Wednesday, December 2, 2020 7:57 AM
To: Brandon <flammowl17@gmail.com>
Cc: Cobirds <cobirds@googlegroups.com>
Subject: Re: [cobirds] Re: Northern Parula in December
Gregg and others,
I would love to hear whether the Parula and Pine Warbler stuck around after the cold frontal passage last night. I doubt the temperatures would be the problem. The snow could cause food gathering issues. The winds are appropriate for migration southward, but I don't know whether the "need" to migrate is still there. Hormonally, There must be a point in every bird that they don't feel like they need to migrate anymore. These birds will be interesting case studies from both the perspective of Dave Leatherman and from Bryan "Weatherman". Bad joke... moving on.
Keep us informed.
Thanks,
Bryan
Bryan Guarente
Meteorologist/Instructional Designer
UCAR/The COMET Program
Boulder, CO
On Wed, Dec 2, 2020 at 2:04 AM Brandon <flammowl17@gmail.com<mailto:flammowl17@gmail.com>> wrote:
Pueblo County is up to 17 species of warblers now thst have been seen during December to February. Pretty amazing total. Most have been since the 1990s.
Brandon K. Percival
Pueblo West, CO
Sent from my Android
On Tue, Dec 1, 2020, 6:44 PM Gregg Goodrich <gregggoodrich@gmail.com<mailto:gregggoodrich@gmail.com>> wrote:
There are no previous December eBird records of Northern Parula in the Denver/Fort Collins area until today December 1st, 2020. The Chatfield bird was seen and photographed today. The Springs, Pueblo, Pitkin Cnty and Garfield Cnty have had December records. It will get down to around 20 degrees tonight with chance of snow. Wonder if it will be here tomorrow.
Gregg Goodrich
Highlands Ranch
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"jared.d...@gmail.com" <jared.delrosso@gmail.com>: Dec 02 03:00PM -0800
Dave's post reminded me of an excellent book on this -- Bernd Heinrich's *Winter
World: The Ingenuity of Animal Survival*. The book is largely written about
northeastern species, but briefly addresses our poorwill's torpor. Heinrich
makes a star of Maine's Golden-crowned Kinglets in the book.
Among the most memorable and darling cold weather behaviors of our metro
area birds has to be the lines of Bushtit that pack in together to stay
warm. I don't know if they're consistent with their poses -- but in most
lines (usually during cold, cold mornings) I see, the birds alternate: one
looking forward, one looking backward, one looking forward, etc. So it's
tail, head, tail, head facing you. Is it to keep an eye on all directions?
Balance? I have some photos of this, but the new Google groups interface
doesn't seem to allow embedded photos anymore...
- Jared Del Rosso
Centennial, CO
On Wednesday, December 2, 2020 at 2:49:57 PM UTC-7 Dave Leatherman wrote:
"Rolf Hertenstein, Lyons" <rfherten@gmail.com>: Dec 02 04:25PM -0800
Perhaps the alternating position maximizes body area in direct contact,
minimizing heat loss. Just a guess.
Rolf Hertenstein, Lyons, Boulder County
On Wednesday, December 2, 2020 at 4:00:25 PM UTC-7 jared.d...@gmail.com
wrote:
"jared.d...@gmail.com" <jared.delrosso@gmail.com>: Dec 02 03:06PM -0800
Haven't birded much and have mostly been watching my Centennial (Arapahoe
Co.) yard. A trio of Lesser Goldfinches have been regular over the past
week or so. It's largely because I hung a thistle feeder this year. (I
don't usually.) But I've also seen the birds visiting the Green Rabbitbrush
bushes in the back of my yard. I didn't cut the stems and seeds down this
year. I'll pay for this next year with new seedlings. But for now, it's
nice to see the birds on plants and not just the feeders...
Dark-eyed Juncos, meanwhile, seem to spend a lot of time on the ground near
Rocky Mountain Bee Plant, though I can't be sure they're going after its
seed, as there are also seedy sunflowers, flaxes, and penstemons nearby.
- Jared Del Rosso
Centennial, CO
Larry Modesitt <larry.corvid@gmail.com>: Dec 02 10:53AM -0800
Cobirders,
The mass for Joe Roller will be this Friday, December 4, at 10:00 a.m.
Click the link below for the Good Shepherd website. At the upper right is a
button, "Subscribe." Click this, and you will be notified automatically
when the services begin. Registering or entering a code is not necessary.
https://www.youtube.com/channel/UCHlrdT-XiDV8xNgbJ4_GU1g
Joe's family is extremely appreciative of the many warm messages posted
about Joe. It's brought them much comfort.
Larry Modesitt, Arvada
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