Hi all,
Passing this along from Bird Conservancy of the Rockies.
Nathan Pieplow
Boulder
*Update on Barr Lake from Bird Conservancy of the Rockies:*
Bird Conservancy of the Rockies met with FRICO (Farmers Reservoir and
Irrigation Company) and CPW staff to discuss mitigating damage to critical
Seriously, folks. People should get out and look. If there's ever going to
be a flamingo in Colorado, now is the time.
Nathan Pieplow
Boulder
On Wed, Sep 27, 2023 at 2:11 PM Todd Deininger
wrote:
> 300 miles from the CO border
> <https://www.facebook.com/photo/?fbid=758605096
d down on the adjacent plains. I
had a Type 4 bird fly over me at Twin Lakes in Gunbarrel about two weeks
ago, and a Type 2 bird there more recently.
Nathan Pieplow
Boulder
On Fri, Sep 22, 2023 at 2:11 PM 'Richard Trinkner' via Colorado Birds <
cobirds@googlegroups.com> wrote:
> A week ago, wh
-barr-lake-park/73-79ef4125-c3ac-432d-80ec-b983b2d7c119
Nathan Pieplow
Boulder
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also consider reaching out to your state and local government
representatives. If you are a member of a group that would like to get
involved, contact Tammy VerCauteren ,
who is working to initiate a wide-ranging response.
Nathan Pieplow
Boulder
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Lake, a behind-the-scenes tour of the museum
collection at DMNS, or a birding-by-ear field trip guided by yours truly,
just to name a few!
Let me know if you have any questions, and I hope to see some of you there.
Nathan Pieplow, Boulder
Board member, Bird Conservancy of the Rockies
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Hello all,
Will Anderson from the University of Colorado is giving a free talk on
Wednesday night at 7:00 pm at the CU Mountain Research Station near
Nederland. The public is invited.
Dinner will precede the talk at 6:00 pm (assuming enough people register
for the dinner). Details on the
the phone and hit record.
Nathan Pieplow
Boulder
On Mon, Jun 19, 2023 at 4:08 PM David Lawrance
wrote:
> Nearly Half of the Cassia Crossbill's Population Could Be Lost After
> Wildfire
> <https://www.audubon.org/news/nearly-half-cassia-crossbills-population-could-be-lost-af
?
Nathan Pieplow
Boulder
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* All po
Definitely a Scott's Oriole, by song.
Nathan Pieplow
Boulder
On Wed, Apr 19, 2023, 4:18 PM Charles Hundertmark
wrote:
> Song seems closer to Scott’s Oriole.
> Chuck Hundertmark
>
> Sent from my iPhone
>
> On Apr 19, 2023, at 3:48 PM, Patrick O'Driscoll
> wrote:
&
this weekend, let us know about it.
Likewise if you are planning to hit any key spots in the next few days.
Might be good to coordinate our efforts a little bit.
Nathan Pieplow
Boulder
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in
November!
Nathan Pieplow
Boulder
On Sun, Nov 20, 2022, 3:48 PM Mark Miller wrote:
> Hi Everyone,
>
> Today 11/20 I visited Lake McIntosh in Longmont to get some idea of what's
> going on with the ice and snow. The lake is 99% frozen, with just a Western
> Grebe, a few Mall
There is a NEGATIVE report of the King Eiders this morning from Lake Hattie
in Wyoming (https://ebird.org/checklist/S122649167). So let's get out there
and check Colorado's water today!
Nathan Pieplow
Boulder
On Fri, Nov 18, 2022 at 4:16 PM Nathan Pieplow wrote:
> Elaine Wagner and Doug Ki
wdrey
Lake, and Delaney Buttes have all partly frozen and are expected to be
totally frozen in the next couple of days. Presumably the same goes for
Walden Reservoir.
Lake Granby is completely open and will probably remain that way for a good
while.
Nathan Pieplow
Boulder
On Fri, Nov 18, 2022 at 3:17 PM li
on the
implications for Cassia's species status.
https://finchnetwork.org/cassia-crossbills-in-colorado-the-mystery-deepens
Enjoy!
Nathan Pieplow
Boulder
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of
these warblers will stay, or what will show up next, but I'm excited to
keep checking this spot in the coming days.
Nathan Pieplow
Boulder
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of the easternmost pond, where
it usually either hunkers down in the woody vegetation along the waterline,
or else prowls the grass right next to the walking trail in plain sight.
Nathan Pieplow
Boulder
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Friday evening, October 14, at the
Denver Museum of Nature and Science. For more information and to purchase
tickets, see https://bcotr.cbo.io/.
I'm happy to answer questions you may have!
Nathan Pieplow
Bird Conservancy of the Rockies board member
Boulder, Colorado
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mostly a quarter mile west, around the farmer's pond on the north side
of the road. It calls occasionally and sits mostly on exposed perches, both
close to and far from the road. Good luck to anyone who chases this
spectacular rarity.
Nathan Pieplow
Boulder
On Thu, Sep 22, 2022, 10:50 AM Brandon
, and if people record every crossbill they hear, we'll probably
find more Cassias in new places. Rachel Hopper's been looking in Larimer
and I've done a little looking in Boulder County, but I wanted to encourage
more people to actively look in more areas. Keep an eye on those lodgepole
pine stands!
Nathan
. If you are hearing a bird that sounds like a Chihuahuan
Meadowlark, you'll need recordings of the "dzert" call and/or good photos
of the bird (the face and, especially, the spread tail) in order to rule
out the other two species.
Nathan Pieplow
Boulder
On Wed, Aug 3, 2022 at 10:5
!
Nathan Pieplow
Boulder
On Fri, Jul 22, 2022 at 11:35 AM William Churchill Anderson <
wian6...@colorado.edu> wrote:
> Hi all,
>
> Nathan Pieplow, Luke Pheneger, and myself are up on Rock Creek Road in
> Summit County right now, and just recorded the continuing CASSIA
> C
. But
upslope-and-a-thousand-miles-south? That's pretty weird.
Nathan Pieplow
Boulder
On Thu, Jul 14, 2022 at 10:50 AM mvjo...@gmail.com
wrote:
> Does anyone know if both male and female make the clicking sounds? You can
> see where I am going with this and wondering if this mght be a breedi
this bird will vocalize mostly at dawn and dusk. Huge thanks and
congratulations to Eric DeFonso for this spectacular find.
Nathan Pieplow
Boulder
On Tue, Jul 12, 2022, 6:53 PM Luke Pheneger wrote:
> Yellow Rail at Monte Vista is calling now.
>
>
> Luke P
> Will A
>
on.
Nathan Pieplow
Boulder
On Thu, Jun 30, 2022 at 8:58 AM Mark Miller wrote:
> Hi Everyone,
>
> This morning 6/30 I went over to Clark Centennial Park to see if the
> previously reported Purple Martin was around. Before I left my house in SW
> Longmont, I heard an unusual noise along
for Colorado's first state record
around water bodies, swampy spots, and well-watered riparian areas such as
Two Buttes, Thurston Reservoir, Van's Marsh, and the west end of John
Martin Reservoir, just to name a few.
Nathan Pieplow
Boulder
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I agree that the color of the feather bases in the photo is consistent with
the pale gray of Common Raven rather than the bright shining white of
Chihuahuan. The bill shape, nasal bristle length, and vocalizations are all
consistent with Common Raven as well.
Nathan Pieplow
Boulder
On Thu, Jun
Upload correctly identified audio recordings on your eBird checklists.
- Volunteer to annotate sound recordings for MerlinVision, which
involves drawing boxes around spectrograms to train the AI. This option
requires some expertise in birding by ear and in reading spectrograms.
I hope this inspire
keep your eyes and ears peeled.
Nathan Pieplow
Boulder
On Wed, May 18, 2022 at 10:34 AM Paula Hansley wrote:
> CObirders,
> At dawn this morning, I heard the familiar "Zee-zee" (going down in pitch)
> as I was leaving the Walden parking lot with the bass fishermen! This is
&
According to my eBird track, it is a 0.62 mile walk north from the
northernmost parking lot inside the state park, and it took me 11 minutes
to get here. Scope views are excellent.
This is the spot:
Dropped pin
https://maps.app.goo.gl/WFpBxB4vzNtbDxLU8
Nathan Pieplow
Boulder
On Sun, May 8, 2022
visible from the shoulder of the county road, looking east
at the north end of the lake, but this is best for a quick scan and not
prolonged looks, because the two-lane highway is busy and the shoulder is
muddy.
Nathan Pieplow
Boulder
On Sun, May 8, 2022, 10:49 AM smka2 via Colorado Birds <
cobi
Every year, multiple pairs of Violet-green Swallows nest in buildings on
the CU Boulder campus, usually in the space between the red tile roof and
the gutter, as far as I've been able to ascertain.
The species also nested in cavities under the eaves of the log cabins of
the summer camp where I
and want more
details, please email me individually at npiep...@gmail.com.
Thanks!
Nathan Pieplow
Boulder
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The Pyrrhuloxia photographed yesterday in Denver is still present this
morning. In a weedy yard at the south end of 1228 Newton. There is street
parking in the neighborhood.
Nathan Pieplow
Boulder
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Jan Hansen found a pair of Snow Buntings on the south shore of Boulder
Reservoir at 40.0728855, -105.2285146. Several of us are looking at them
right now.
Nathan Pieplow
Boulder
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w to sound like a Song
Sparrow. Currently it's not doing a great job, but it will get much better
by May. :)
Nathan Pieplow
Boulder
On Sat, Nov 20, 2021 at 1:46 PM John Shenot wrote:
> I recorded a song sparrow this morning singing in a way I'm not accustomed
> to hearing. I'm not saying t
.
Will Anderson found a White-throated Sparrow at Varsity Pond this morning
also.
Nathan Pieplow
Boulder
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A flock of gulls sounds like a good bet. This time of year, I see large
flocks of Ring-billed Gulls heading northwest over my house toward Boulder
Reservoir in the early evening, on their way to roost for the night.
Nathan Pieplow
Boulder
On Mon, Oct 18, 2021 at 8:29 AM 'ronbco' via Colorado
f-sound-id-in-merlin/
But it is a pretty cool feat of coding, and I highly recommend getting out
and testing it for yourself.
Nathan Pieplow
Boulder
On Sat, Jul 10, 2021 at 1:37 PM Charles Hundertmark
wrote:
> Here’s what Merlin folks offer as a feedback route:
>
> "If you’ve tried Sou
their
summer range into Morgan County, but from eBird reports it seems they've
been around in Fort Morgan and Brush for a few years now. I thought I'd
mention our sighting in case other people are in the area and can confirm
nesting.
Nathan Pieplow
Boulder
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pond.
Nathan Pieplow
Boulder
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*
than "Steller's
Jay"?
Nathan Pieplow
Boulder
On Thu, Apr 15, 2021 at 4:09 PM Ira Sanders wrote:
> Bob
> Maybe it will turn out that Steller was a Confederate general and they
> will change the name to Mountain Jay
> Ira Sanders
>
> On Thu, Apr 15, 2021, 12:30 PM Rober
record for
Colorado, but then it turned out that Nick Moore had recorded one on
January 15, half a mile from here.
So, keep an eye out for crossbills, and if you see or hear any, whip out
that phone right away and get a recording!
Nathan Pieplow
Boulder
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pitch.
Nathan Pieplow
Boulder
On Mon, Mar 8, 2021 at 1:50 PM Jared Del Rosso
wrote:
> Yesterday, while wandering around my Centennial yard in the morning, I
> heard a sparrow sing a 3 or 4 note song of clear whistles. The bird stayed
> out of view the entire time and got ever far
I agree that this is a quiet early-spring subsong of American Robin.
Nathan Pieplow
Boulder
On Tue, Jan 19, 2021 at 10:35 AM 'The Nunn Guy' via Colorado Birds <
cobirds@googlegroups.com> wrote:
> Hi all
>
> Forgot to include that "Spring sub-song or whisper song. Getting th
I am looking at the possible Red-breasted Sapsucker in Morrison right now
from the creek path between Park Ave and the Highway 8 bridge. It's in a
Douglas-fir across the creek to the south.
Nathan Pieplow
Boulder
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non-birders in ways that we often don't. His style of outreach is
sorely needed, and he's not around anymore to do it for us, so it's up to
us now.
He was a dear friend and I miss him.
Nathan Pieplow
Boulder
On Wed, Nov 25, 2020 at 7:44 PM Larry Modesitt
wrote:
> I passed on to Maryanne al
The CU Birding Club and several other people looking for the Tennessee
Warbler along the Bear Creek Greenbelt just found a Winter Wren
at 39.657887,-105.064421. The warbler was seen by others earlier this
morning.
The Varied Thrush continues at Hudson Gardens in Arapahoe County.
Nathan Pieplow
A pair of Gray-crowned Rosy-Finches is foraging right now in the parking
lot at the north access to Rocky Flats National Wildlife Refuge. A pleasant
surprise.
Nathan
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Bird just left Cherry Creek heading southwest. Check Chatfield.
Nathan Pieplow
Boulder
On Sun, Nov 8, 2020, 11:22 AM David Bailey
wrote:
> Still present. Hovering over south part of reservoir.
>
> On Sun, Nov 8, 2020 at 11:03 AM Ken Wat wrote:
>
>> Mary and myself were seei
A Trumpeter Swan was on the Colorado River near the DeBeque Canyon Tunnel
this afternoon (https://ebird.org/hotspot/L4646093). This is the same spot
where one has wintered in previous years.
Nathan Pieplow
Boulder
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visited that seed outside the wall at least once today.
When the dove visits his yard, it often spends time in the elm tree before
and after feeding. When it leaves his yard it flies off to the north.
Good luck to anybody who chases this remarkable first state record, and be
safe.
Nathan Pieplow
part of town. If George finds it again, he will let Coen know.
If anybody else goes looking around Norwood, please let us know what you
find.
Nathan Pieplow
Boulder
On Sun, Oct 18, 2020 at 11:22 AM Alec Hopping wrote:
> Hi All,
>
> An eBird report of Common Ground-Dove was just submitted
everyone to the online
fall fundraiser this Friday evening at 6:00 PM. Details at this link:
https://birdconservancy.org/vision2020
This year has been rough for many people; let's create a bright spot.
Nathan Pieplow
Bird Conservancy of the Rockies board member
Boulder, Colorado
--
You received
/1621274474790720
https://ebird.org/checklist/S74279024
https://ebird.org/checklist/S74182524 (this list has it marked as a
Black-bellied Plover)
The bird was seen along the south shore of Lake 14.
This species has only been seen a few times in the Lower 48, only on the
northeastern coast.
Nathan Pieplow
right for a Long-eared to me, or look right on the spectrogram.
Nathan Pieplow
Boulder
On Tue, Aug 18, 2020 at 8:18 AM Charles Hundertmark
wrote:
> Immature Great Horned Owls do have a shriek like a Barn Owl.
>
> Chuck Hundertmark
> Lafayette
>
> On Aug 18, 2020, at 8:14 AM
ever heard or
recorded the begging calls of the species before. Most renditions sound
like a lower, softer, finer version of the trill call of adults.
Happy birding,
Nathan Pieplow
Boulder
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"Colorado Birds&q
can
obtain additional confirmation of this apparent family group.
Nathan Pieplow
Boulder
On Mon, Jul 20, 2020 at 8:48 PM Nathan Pieplow wrote:
> This evening I was hiking at the mouth of Sunshine Canyon in Boulder when
> I heard the whistled "Pee-tee" call of a Broad-winged Hawk. A
and.
Broad-winged Hawks breed in small numbers on the Front Range but it's
always exciting to run into a family group.
This was only about 100 yards up Sunshine Canyon Road from the Mt. Sanitas
Trailhead.
https://ebird.org/checklist/S71684131
Nathan Pieplow
Boulder
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eBird doesn't show any reports of Eastern Meadowlark in Park County. Photos
of the bird would be nice, as would more audio of the bird (especially call
notes).
Good birding,
Nathan Pieplow
Boulder
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"Colora
Road.
The tanager was at the stream crossing just south of 1700 Greenwood Road. I
will upload photos to eBird when I get home.
Nathan Pieplow
Boulder
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duck blind on
the right side of that same pond. I mention the decoys because I see some
people have recently reported Canvasback and Redhead from this location,
and I just wanted to make sure that the decoys were on everybody's radar.
Nathan PIeplow
Boulder
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A flock of nearly 200 Mountain Bluebirds is at the Greenbelt Plateau
Trailhead along Highway 93 south of Boulder this morning. A sure sign of
spring.
Nathan Pieplow
Boulder
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The Snow Bunting continues this morning just west of I-70 in the previously
reported spot.
Nathan Pieplow and the CU Birding Club
Boulder
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Eagles and a pair of Ferruginous Hawks. A few of us tried to
cap our day with the Great Black-backed Gull at McIntosh Lake in Longmont,
but it was missing when we arrived in late afternoon, despite having been
reported earlier in the day.
It was a lovely day to be out. Good birding,
Nathan Pieplow
The Black Brant continues at Lake Arbor in Arvada, for those wishing to
start the year off right. Greater White-fronted Goose also present.
Nathan Pieplow
Boulder
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Thrush also present.
Nathan Pieplow
Boulder
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To view this
a warbler, but lots of
Chipping Sparrows and Sandhill Cranes, a Townsend's Solitaire and a Swamp
Sparrow.
Good birding,
Nathan Pieplow
Boulder
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at Sawhill (the one with the Osprey
platform). We didn't see it. There were two Great Horned Owls perched in
trees along the Sawhill Ponds trail at different points west of the parking
lot.
Good birding,
Nathan Pieplow
Boulder
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The Ani is currently visible in the same spot.
Nathan Pieplow
Boulder
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shorebird species.
Dove season opened today in Colorado, so be ready to hear a lot of gunshots
in some birding areas on the eastern plains.
Good birding,
Nathan Pieplow
Boulder
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migration has definitely gotten interesting.
Nathan Pieplow
Boulder, Colorado
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; That Blue Jay behavior seems to be a dominant male (OR FEMALE) defending a
> food supply.
> The rattling sound and bouncing movements I assume are "threat displays"
> like human males "putting up their fists"or shouting or standing taller.
> Nathan Pieplow describes a Blue
publishing in a note in
Colorado Birds. To be certain, you'd have to locate the singing bird before
you played back to it, and watch to make sure it is the same male
responding.
Nathan Pieplow
Boulder, Colorado
On Mon, Jul 1, 2019 at 6:09 PM linda hodges wrote:
> Greetings, cobirders,
>
>
were singing within half a mile of the trailhead.
Nathan Pieplow
Boulder
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area, and I will share expenses for gasoline. Please contact me by e-mail
at revans9...@aol.com or by cell phone at (303)818-5256. If I do not pick
up the phone, please leave a message regarding how you may be reached.
Nathan Pieplow
Boulder
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is a totally different matter.
Personally, I'd recommend the conservative approach, asking all birders to
supply comments and media on all ravens they encounter in SE Colorado, with
"raven sp." the default unless the bird is carefully studied.
Nathan Pieplow
Boulder
On Sun, May 26, 2019
The Hermit Warbler is showing extremely well near the corner of University
and 17th in Boulder.
Nathan Pieplow
Boulder
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of the locally famous Great Horned Owl nest, which is inside
the top of a broken-off cottonwood across the creek from the trail. Owlet
and adult were in the nest this morning.
Here's the ebird checklist with the audio file:
https://ebird.org/view/checklist/S55209761
Nathan Pieplow
Boulder
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parking area. It flew just as I started writing this; I didn't see which
direction.
This is my first encounter with this individual after 5-6 tries this year
and last. Glad it has stuck around.
Nathan Pieplow
Boulder
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The Barnacle just flew off with a bunch of other geese. Seems like all the
birds are leaving the reservoir for the night.
Nathan Pieplow
Boulder
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The Golden-crowned Sparrow continues at CU Boulder's South Campus, south of
the tennis courts where a gate crosses the trail. An Eastern Bluebird was
in the Russian-olives about a quarter mile southwest of there, on the
hillside at the edge of the houses.
Nathan Pieplow
Boulder
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of tailgaters in the morning.
Nathan Pieplow
Boulder
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To post to
f the best birders in Colorado.
(An awful lot of us owe you a Golden-crowned Warbler, among many, many
other fine birds!)
"I’d rather be wrong and have a clean list than fudge a rarity." Hats off
to that sentiment. Thanks for everything you do for the Colorado birding
community.
Na
Bird just left this location headed southwest, more or less back toward
Prince Lake, but not all the way.
Nathan Pieplow
Boulder
On Sun, Oct 21, 2018, 5:42 PM Nathan Pieplow wrote:
> Bird has left Prince Lake. Just refound along walking path just west of
> south end of Carbonat
Bird has left Prince Lake. Just refound along walking path just west of
south end of Carbonate Lane.
Nathan Pieplow
Boulder
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be around. This is also the first
time this week that I didn't see Hermit Thrush here. The snowstorm brought
double digits to this site.
Nathan Pieplow
Boulder
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was a western Palm Warbler, a
MacGillivray's Warbler, two Lewis's Woodpeckers, and at least 44 (!!)
Hermit Thrushes. A late Broad-winged Hawk soared southward.
Fentress Lake just north of Boulder had hundreds of ducks, though nothing
rare.
Nathan Pieplow
Boulder
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was widely assumed the bird had continued
on to Wyoming. I'd love to see whether photos can demonstrate whether or
not it might be the same individual.
Nathan Pieplow
Boulder
On Tue, Oct 2, 2018 at 9:59 PM Brandon wrote:
> I wouldn't think there would be more than one Fork-tailed Flycatcher thi
Hi all,
This morning, an active flock of migrants at the west end of the Cottonwood
Marsh boardwalk at Walden Ponds included a first-winter female
Chestnut-sided Warbler, as well as a Green-tailed Towhee and a bunch of
other more common species. The snipe count at the marsh was 88.
Nathan
for a second night!
Nathan Pieplow
Boulder
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can find it!
Nathan Pieplow
Boulder
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an adult singing persistently there on 5/10 and 5/30, and found the adult
tending a brown streaky juvenile on 6/15.
Looks like Andy Belt reported a Gray-headed Junco at Rocky Mountain Arsenal
on 6/19, too.
Nathan Pieplow
Boulder
On Wed, Jun 27, 2018 at 8:52 AM Charles Hundertmark
wrote
times. It came in super handy a couple weeks ago
when I found a White-eyed Vireo singing while I was walking the dogs. And I
pull it out every time I hear a Red Crossbill fly over, so I can document
the call type. It's a good habit to get into.
Nathan Pieplow
Boulder
On Tue, Jun 26, 2018 at 10:05
for campus flew
over.
Nathan Pieplow
Boulder
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ells us little about a *Vermivora *warbler's parentage, and
song alone should never be used to identify a *Vermivora *warbler to
species.
Nathan Pieplow
Boulder
On Fri, May 25, 2018 at 1:00 PM, Joyce Takamine <jabir...@gmail.com> wrote:
> In June 2004 there was a Blue-winged Warbler in Gregory
Just to remind everybody: female orioles sing frequently. So do female
cardinals and grosbeaks. In fact, females sing at least rarely in most
passerine species. So beware of assuming that a bird is a male just because
it's singing!
Nathan Pieplow
Boulder
On Fri, May 25, 2018 at 8:10 AM, Linda
Being seen now by many, right where Dave Leatherman described yesterday.
Nathan Pieplow
Boulder
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A White-eyed Vireo was half a block north of the entrance to Green Mountain
Cemetery in Boulder just now. Detected by song, well seen, audio recorded.
Nathan Pieplow
Boulder
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, with fruitless
searching in between. The second time I had my camera, but no luck on
photos. The bird was mostly hanging out around the mouth of parking lot
#416. I rather doubt it will be around in the morning, but I'll keep an eye
out and post if I see it again.
Nathan Pieplow
Boulder, Colorado
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