[cobirds] Colorado Rare Bird Alert for Monday, October 21, 2019

['Allison Hilf' via Colorado Birds]

Date:  Monday, October 21, 2019
E-mail:  RBA AT cobirds.org
Compiler: Allison Hilf;  ahilf AT me.com
Phone : 303-888-5110

Birders have been helpful by reporting updates to COBirds. Thanks!
CAPITAL LETTERS denote very rare species, as listed by the Colorado Bird 
Records Committee at the CFO website.
(*) indicates new information on a species.
For more information on birds seen today, go to cobirds.org and scroll to the 
bottom for “Recent eBird Sightings”.

Rare, out-of-place and out-of-season species include:

Surf Scoter (Adams, Park)
LESSER NIGHTHAWK (Larimer)
BROAD-BILLED HUMMINGBIRD (*Mesa)
AMERICAN GOLDEN-PLOVER (Douglas, Park)
Red Phalarope (Park)
POMARINE JAEGER (Park)
PARASITIC JAEGER (Larimer)
Pacific Loon (Larimer)
SPRAGUE’S PIPIT (Yuma)
Magnolia Warbler (*Jefferson)
Chestnut-sided Warbler (El Paso)
Black-throated Green Warbler (*Boulder, Weld)


ADAMS COUNTY:
—On October 18 a Surf Scoter was reported at what used to be called “Heron 
Pond” at Lowell Ponds State Wildlife Area, on the eastern most pond, by Bob 
Canter.

BOULDER COUNTY:
—On October 20 a Black-throated Green Warbler was reported in trees just east 
from 29th Street, where it crosses over the small creek (Aurora Area).  A 
Townsend’s Warbler has been seen nearby.  First reported on October 19 by Nick 
Moore.

DOUGLAS COUNTY:
—On October 19 an AMERICAN GOLDEN-PLOVER was reported at Chatfield SP—Plum 
Creek Delta; first reported there and at the Marina Sandspit October 12 by Joey 
Kellner. It was accompanied by other shorebirds, including Black-bellied 
Plover, Dublin and Pectoral Sandpiper.

EL-PASO COUNTY:
—On October 15 a Chestnut-sided Warner was reported at Memorial Park/Prospect 
Lake, behind the Police Memorial, by Terence Berger.

JEFFERSON COUNTY:
—On October 20 a Magnolia Warbler was reported at Denver West Office Park by 
Kevin DeBoer.  The Magnolia Warbler was in a flock which included (3) 
Townsend’s Warblers; a Nashville Warbler and a possible Chestnut-sided Warbler.

LARIMER COUNTY:
—On October 19 a Pacific Loon and (2) Common Loons were reported at Douglas 
Reservoir by John Shenot.
—On October 16 a LESSER NIGHTHAWK was reported at North Shields Pond Natural 
Area by David Wade.
—On October 15 a PARASITIC JAEGER was reported from Warren Lake. First reported 
October 12 by Bob Righter. This private lake can be viewed from these 
locations, provided by Rachel Hopper: (40.533634,-105.053946) and 
(40.530372,-105.063571).

MESA COUNTY:
—On October 20 a sub adult male BROAD-BILLED HUMMINGBIRD was reported at a 
private residence in Palisade.  The address is 566 36 Road (East Orchard Mesa 
).  The house is at the end of a long driveway just across from the fire 
station.  The house is on the right side of the drive. The hummer is still 
coming in on a regular basis to the driveway feeder.  Best time for viewing is 
in mornings when the sun is on the driveway feeder.  It is in the shade after 2 
pm.  Visitors are welcome to view FROM THE DRIVEWAY and park along the 
driveway.  First reported on September 28 by Gene Byrne.  This would be the 
fourth state record, the first in 2002 was also in Mesa County.

PARK COUNTY:
—On October 17 a POMARINE JAEGER was reported at Antero Reservoir by Kevin 
DeBour.
—On October 15 (9) Surf Scoters were reported at Eleven Mile State Park by 
Steve Mlodinow.
—On October 15 an AMERICAN GOLDEN-PLOVER and (4) Black-bellied Plovers were 
reported at Spinney Mountain Reservoir by Steve Mlodinow.
—On October 15 a Red Phalarope was reported at Antero Reservoir by Steve 
Mlodinow.

WELD COUNTY:
—On October 15 a Black-throated Green Warbler was reported at Glenmore Park.  
First reported on October 13 by Shawn Mason.

YUMA COUNTY:
—On October 19 a SPRAGUE’S PIPIT was reported in Hale at “Pipit Hill”.  (3) 
First reported on October 5 by David Dowell.


Upcoming DFO Field Trips...trip details at dfobirds.org

Park County Reservoirs
Tuesday, October 22
5:00 AM - 4:00 PM
David Suddjian (dsuddj...@gmail.com; 831-713-8659)

Lincoln Mountain Open Space, Douglas County
Saturday, October 26
7:00 AM - 1:00 PM
Chris Gilbert (chrisgee9 AT gmail.com; 804-214-1508)

Bluff Lake Nature Center
Saturday, October 26
7:30 AM - 11:30 AM
Megan Miller (Megan.k.miller2473 AT gmail.com; 720-775-9710)

First Creek at Denver Open Space
Sunday, October 27
7:30 AM - 12:00 PM
Patrick O'Driscoll (patodr...@gmail.com; 303-885-6955)

Happy Birding!
Allison Hilf, Aurora
Ahilf AT me.com
303-888-5110




Sent from my iPhone

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[cobirds] Denver West Warblers--JEFFCO

[MARK CHAVEZ]

Today,  Aaron Shipe, David Starbuck, and I decided to brave the strong winds 
and bird Denver West.  We had just got the BLACK-THROATED GREEN WARBLER in 
Boulder.   We had been birding the business park intermittently and noticed a 
lot of warbler activity the last few weeks.  We followed our hunch and found a 
late NASHVILLE WARBLER along with three TOWNSEND'S WARBLERS along with many 
Yellow-rumps, a few kinglets. nuthatches, and chickadees.  After being joined 
by Kevin DeBoer, we found a MAGNOLIA WARBLER in this warbler flock!! We are 
also pretty sure there was a fall Chestnut-sided that we failed to get photo 
documentation on. It was nice to get the word out for a few other birders to 
enjoy. To think we had 6 great warblers in late October in windy cold 
conditions!!  What fun birding


Mark Chavez
Lakewood-Green Mtn
http://jaeger29.smugmug.com/

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[cobirds] Magnolia Warbler

[James McCall]

Wanted to add, found by Kevin DeBoer and Aaron Shipe

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[cobirds] Magnolia Warbler

[James McCall]

At denver west building 6. Seen by a bunch of us. Hanging in the pines


James McCall
Arvada

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Re: [cobirds] wigeon ID help, Boulder Co

[coloradodipper via Colorado Birds]

Peter:
While your bird is a bit interesting, I now believe that it is a male American. 
Upon first looking at the photos on my phone, I came to the conclusion that it 
is a hybrid, but now that I've looked at them on a computer I do not.
Male Americans often show obvious, even strong, buff or yellow tones to the 
crown stripe. Additionally, from knowing the month (Oct) and from the 
appearance of the bird, it is certainly still in the midst of its fall molt, 
whether the preformative of a first-year bird or the prebasic of an adult, I 
know not. [See here for molt and plumage terms.] Thus, some plumage features 
can be expected to be incomplete, oddly colored (due to mixed feather 
generations), or otherwise confusing. However, the bird shows the thin, black 
border to the base of the bill typical of American, as well as the 
dark-streaked gray head feathering and the pink sides.
Unless any Eurowiggle genes were provided many generations earlier, I would 
expect more-obvious signs of hybridity.
Sincerely,
Tony
Tony LeukeringWiley, CO


 wigeon ID help, Boulder Co   
|   Peter Ruprecht : Oct 20 12:02AM  

 Hi cobirds,
I and several others saw a male wigeon this afternoon in SE Boulder Co (viewed 
from private property.)  It looked distinctly different from the others around 
it, with a much buffier pate, slightly grayer sides, and much less of a green 
eye stripe.  In some light its head showed an almost iridescent-looking 
cinnamon shine, though usually it seemed mostly gray.
Some not-so-great digiscoped cell phone pics are attached.
Do you all think this guy is within the normal range of American Wigeon 
variation, is it maybe still coming out of eclipse plumage, or might it have 
some Eurasian ancestors?  Any opinions welcome!
 
Thanks,Peter RuprechtSuperior
  |

 
 

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Re: [cobirds] Boulder Black-throated Green Warbler

[DuWayne Worthington]

Bird was refound this morning at 8:45 am in the same tree as yesterday by a
small group of 5 people.  It was hanging out with 3 yellow-rumped warblers
and a Townsend's Warbler.  We all got great looks after looking for an hour
for it.

*DuWayne Worthington*

*Science Teaching Faculty*


*Valor Christian High School*

*Influence through Excellence*

*3775 Grace Blvd.*

*Highlands Ranch, CO  80126*

*303-471-3000 x 3278*
*www.govalor.com *


On Sat, Oct 19, 2019 at 7:50 PM Dan Zmolek  wrote:

> Re-found the bird at ~5 pm in same general area, only slightly further
> west; initially seen in the trees just east from 29th st, where it crosses
> over the small creek there.  Subsequently seen there by m.o.b. Really nice
> find, and a lifer for myself and others present.  Thanks Nick!
>
> Dan Zmolek
>
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[cobirds] American Dipper in Clear Creek, Adams County, today

[Marcia Canter]

Hi CoBirders
I found an American Dipper in Clear Creek at the I-76 bridges this 
mourning. This is in Adams Cnty. The bridges are east of Lowell Blvd. 
viewed from the bike path. 
Bob Canter, Denver 

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[cobirds] Barr Lake SP - Adams CO

[Ira Sanders]

Birders,
Yesterday at Barr Lake, Dave Hill had 2 juv Sabine's Gulls and I had 1
adult.  There were also 3 Lesser Black-Backed Gulls and lots of Franklin's.
Not a lot of passerines.

-- 
Ira Sanders
Golden, CO
"My mind is a raging torrent flooded with rivulets of thought cascading
into a waterfall of creative alternatives."

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Re: [cobirds] Accessing the lake bed at Barr Lake

[Charlie Chase]

Thanks for following up on this Ira.




On Fri, Oct 18, 2019 at 7:08 PM Ira Sanders  wrote:

> Hey all
> I spoke to the park manager at Barr Lake State Park today and she said
> that walking out in the lake bed is permitted with one caveat: While we can
> access the lake bed in the refuge off the Neidrach Trail, if you walk
> around the south side of the lake, you cannot go past the Fox Run Meadow
> area. She said there is a sign indicating no access passed that point.
>
> Ira Sanders
> Golden, CO
>
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> 
> .
>

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