[cobirds] Dinosaur Ridge - Denver Field Ornithologists (30 Apr 2022) 24 Raptors

[reports]

Dinosaur Ridge - Denver Field Ornithologists
Colorado, USA
Daily Raptor Counts: Apr 30, 2022
---

SpeciesDay's CountMonth Total   Season Total
-- --- -- --
Black Vulture0  0  0
Turkey Vulture  12370396
Osprey   0 43 45
Bald Eagle   0 25 58
Northern Harrier 0 24 30
Sharp-shinned Hawk   1 64 73
Cooper's Hawk2171182
Northern Goshawk 0  7  9
Red-shouldered Hawk  0  0  0
Broad-winged Hawk1 45 45
Red-tailed Hawk  5322737
Rough-legged Hawk0  0  3
Swainson's Hawk  0 34 34
Ferruginous Hawk 0  9 63
Golden Eagle 1 10 38
American Kestrel 0294326
Merlin   0 13 17
Peregrine Falcon 1 10 17
Prairie Falcon   0  3 10
Mississippi Kite 0  0  0
Unknown Accipiter1 13 13
Unknown Buteo0  9 15
Unknown Falcon   0  3  5
Unknown Eagle0  3  3
Unknown Raptor   0  3  8

Total:  24   1475   2127
--

Observation start time: 09:00:00 
Observation end   time: 16:30:00 
Total observation time: 7.5 hours

Official Counter:Emma Riley

Observers:Courtney Rella, Keith Bellingham , Patty Bellingham

Visitors:
Courtney Rella, Patty Bellingham, and Keith Bellingham observed in the
afternoon. The trail was relatively empty for a Saturday today, with 20
visitors at the Hawk Watch throughout the day. 


Weather:
The skies stayed clear blue all day with light winds that varied in
direction throughout the day. Temperatures reached 17 C. No snakes were
seen! 

Raptor Observations:
There were a few overhead raptors first thing in the morning, but activity
slowed down greatly by 1000 MST. Birds were few and far between all day,
with a small kettle of TV (8) over Mt Morrison to finish off the day. Local
RT activity was notably low today, but we did have a local BE, a few TV,
and a CH. 

Non-raptor Observations:
FOY Yellow Warbler was seen today flying N along the ridge. Another Rock
Wren was heard on the eastern slope of the hogback all morning. Many of the
other usual visitors were seen today, with Woodhouse's Scrub-Jay's getting
very active in the afternoon. 

Predictions:
Partly cloudy to cloudy tomorrow with moderate speed winds from the NE
predicted. 

Report submitted by DAVID HILL ()
Dinosaur Ridge - Denver Field Ornithologists information may be found at:
http://www.dfobirds.org


More site information at hawkcount.org:  
https://hawkcount.org/siteinfo.php?rsite=123

Site Description:
Dinosaur Ridge is the only regularly staffed hawkwatch in Colorado and is
the best place in the world to see migrating Ferruginous Hawks. Dinosaur
Ridge may be the best place in the country to see the rare dark morph of
the Broad-winged Hawk (a few are seen each spring). Hawkwatchers who linger
long enough may see resident Golden Eagles, Red-tailed Hawks and Prairie
Falcons, in addition to migrating Swainson's, Cooper's and Sharp-shinned
Hawks, American Kestrels and Turkey Vultures. Peregrine Falcons and
Ferruginous Hawks are uncommon; Northern Goshawk is rare but regular.
Non-raptor species include Rock Wren, and sometimes Bushtit, Western
Bluebird, Sandhill Crane, White-throated Swift, American White Pelican or
Dusky Grouse. Birders of any skill level are always welcome.  HawkWatch at
Dinosaur Ridge is generally staffed by volunteers from about 9 AM to around
3 PM from March 1st to May 7th.

Directions to site:
>From exit 259 on I-70 towards Morrison, drive south under freeway and take
left into first parking lot, the Stegosaurus lot. Follow small signs from
the southwest end of lot to the hawkwatch site. The hike starts heading
east on an old two-track and quickly turns south onto a trail on the west
side of the ridge. When the trail nears the top of the ridge, turn left,
head through the gate, and walk to the clearly-visible, flat area at the
crest of the ridge.  (Distance: 0.56 miles, Elevation gain: 259 feet)


-- 
-- 
You received 

[cobirds] Bird Conservancy of the Rockies - Chatfield Banding Report, 4/30/22

[Meredith McBurney]

Finished off April with a mostly Wren and Sparrow day.  Blue skies and no 
wind made it a great day to be out.  Here's the breakdown of today's 11 new 
birds:

House Wren 5
Yellow-rumped Warbler, intergrade 1
Spotted Towhee 1
Lincoln's Sparrow 1
White-crowned Sparrow, Gambel's 3

We are open 6 mornings per week, closed on Mondays.  Registration is 
required to visit on the weekends - there are three 1 hour sessions, 
starting at 7:30, 8:30 and 9:30.  Go here 
 to register.  There are school groups 
every week day, arriving about 9:30.  Individuals may drop by early 
mornings during the week although there are groups visiting early on some 
days.

Meredith McBurney
Bander, Chatfield Station
Bird Conservancy of the Rockies


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[cobirds] Zang's Spur, Colorado, bird list for April

[John Tumasonis]

To:  Colorado Birds:

Zang's Spur, is more commonly know as Broomfield CO;:)

Broomfield Bird list:  4/23/22 thru 4/30/22
Notes:  waterfowl migrant species rapidly decreasing;  hotspots are Plaster 
Reservoir and Alex's Pond.  All sightings are within Broomfield 
unless otherwise noted.   
Key:  
Pr = present in several or many locations
Pl = Plaster Reservoir
B = Brunner Reservoir
Br = Broomfield Commons
L = Broomfield Library Pond
LH - Legacy Highschool area
N = Nissen Reservoir #2
G = Glasser Reservoir
J = Josh's Pond
AM = Alex and Michael's Pond
RT - Ridge Trail
W = Westlake Park

Pied billed grebe - Pl
American white pelican - Pl, AM, B, W (up to 55 at AM)
Double crested cormorant - Pl, W
Black crowned night heron - AM (3)
Snowy egret - AM (5)
Great blue heron - Pl, B, N, J, AM, W
Canada goose - Pr
Cackling goose - L, W
Mallad - Pr
Gadwall - Pl
Green winged teal - N
American widgeon - Pl, B, W, AM, W
Northern shoveler - Pl, AM, L
Blue winged teal - AM
Cinammon teal - Pl, B, J
Canvasback - Pl
Ringnecked duck - Pl, B, N
Lesser scaup - Pl, B, N
Common goldeneye - G
Bufflehead - Pl
Common merganser - Pl
Hooded merganser - B
Ruddy duck - B
Turkey vulture - LH, RT
Bald eagle - LH, RT
Cooper's hawk - Pr, in many locations, plus nesting at AM
Red tailed hawk - Pr and nesting
Swainson's hawk - AM, G
American kestrel - Pr
American coot - Pl, B, N
Killdeer - Pr
American avocet - AM (11)
Ring billed gull - Pl (numbers decreasing)
Common pigeon - Pr
Eurasian collared dove - Pr
Mourning dove - Pr
Great horned owl - 136th and Cedar - nesting
Belted kingfisher - LH
Northern flicker - Pr
Downy woodpecker - Pr
Say's phoebe - Pr
Blue jay - Pr
Black billed magpie - AM, Pl
American crow - Pr
Tree swallow - J - large flock
Barn swallow - Pr
Bushtit - Pr
Black capped chickadee - Pr
White breasted nuthatch - Pr
House wren - N, RT - inspecting bird boxes
Marsh wren - Pl (3) - search reeds, not cattails
American robin - Pr
European starling - Pr
Broad tailed hummingbird - RT
Audubon's warbler - Pl, AM (all males)
Western kingbird - RT
Spotted towhee - AM
Vesper sparrow - BT
Song sparrow - Pr
White crowned sparrow - Walgreen's near Zuni and Midway
Chipping sparrow - RT, AM
Western meadowlark - BT, RT
Red winged blackbird - Pr
Common grackle - Pr
Brewer's blackbird - G, BC
House finch - Pr
American goldfinch - Pr
House sparrow - Pr

Animals by sign or direct observation:
Coyote
Red fox
Raccoon
Black tailed prairie dog
Fox squirrel
Eastern cottontail

Cheers,  John T (Tumasonis), Zang's Spur, Colorado

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[cobirds] 3 short bird song focused DFO field trips added May 19-21

[David Suddjian]

Three new short (3 hour) early morning trips have been added to the DFO
registration page for May 19-21, now open for sign-ups.

All will focus on learning bird song with a small group. Early starts get
us out as things are beginning. These should be great learning and study
opportunities, with good variety. We will be out walking the whole 3 hours
each trip. Details and registration at the link below.
May 19 - Deer Creek Canyon Park
May 20 - Ken Caryl Ranch Hogbacks
May 21 - Chatfield along the S. Platte
https://dfobirds.org/FieldTrips/UpcomingTrips.aspx

David Suddjian
Ken Caryl Valley
Littleton, CO

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Re: [cobirds] Wishful breeding by RCKI at Arapahoe Co

[Diana Beatty]

I heard one singing today in Monument Valley Park in downtown Colorado
Springs as well.

Diana Beatty
El Paso County

On Sat, Apr 30, 2022, 3:08 PM David Suddjian  wrote:

> Ruby-crowned Kinglets don’t nest in Arapahoe County, but it seems they
> want to, or at least a crazy few have sought to try. This tiny montane
> forest nesting species is usually above 8500 feet in various conifer
> forests, reaching their peak up high in the spruce fir forests. But for
> three years now Ruby-crowneds are making a songful presence at Littleton
> Cemetery, with intent to attract a mate. The cemetery does stand out among
> the local landscape in having  a large number of mature spruce trees, so
> one could see why it might attract interest.
>
> Ruby-crowned is generally a rather sparse spring migrant at Littleton,
> where I have found it hard to even find in the last 9 years, except for
> individuals at Littleton Cemetery in the last 3 years. In 2020 multiple
> singers took up residence for some weeks, with the first on 1 May 20. The
> number grew to 5 singers, with multiple birds through 19 May 20, and only
> one lingering with steadfast song from a territory to 18 Jun 20  Then on 1
> May 21 one RCKI returned singing in the same trees as the last one of 2020.
> I was sure it was the same bird back to try again. He stayed until 31 May
> 21. This year he (I am presuming it is the same) returned to the same trees
> on 4/27 and is singing steadily through today. He pretty much sings all the
> time.
>
> One thing I love with the RCKIs (Ricky Ricardos) singing on territory is
> that they sometimes enter into what I call a "percolation mode", where they
> repeatedly sing the first phrase of their song, so it sounds like it is
> percolating or bubbling right along.
>
> David Suddjian
> Ken Caryl Valley
> Littleton, CO
>
> Sent from my iPhone
>
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> 
> .
>

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[cobirds] White-throated Sparrow at Barr Lake 04/30/22

[Guillaume Stordeur]

Hi all,
I thought some of you might like to know there's a White-throated Sparrow 
hanging around with a group of White-Crowned Sparrows at Barr Lake.
I found them on one of the big white logs on the side of the trail, not far 
north from the visitor center bridge, around 1pm today.

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[cobirds] Wishful breeding by RCKI at Arapahoe Co

[David Suddjian]

Ruby-crowned Kinglets don’t nest in Arapahoe County, but it seems they want
to, or at least a crazy few have sought to try. This tiny montane forest
nesting species is usually above 8500 feet in various conifer forests,
reaching their peak up high in the spruce fir forests. But for three years
now Ruby-crowneds are making a songful presence at Littleton Cemetery, with
intent to attract a mate. The cemetery does stand out among the local
landscape in having  a large number of mature spruce trees, so one could
see why it might attract interest.

Ruby-crowned is generally a rather sparse spring migrant at Littleton,
where I have found it hard to even find in the last 9 years, except for
individuals at Littleton Cemetery in the last 3 years. In 2020 multiple
singers took up residence for some weeks, with the first on 1 May 20. The
number grew to 5 singers, with multiple birds through 19 May 20, and only
one lingering with steadfast song from a territory to 18 Jun 20  Then on 1
May 21 one RCKI returned singing in the same trees as the last one of 2020.
I was sure it was the same bird back to try again. He stayed until 31 May
21. This year he (I am presuming it is the same) returned to the same trees
on 4/27 and is singing steadily through today. He pretty much sings all the
time.

One thing I love with the RCKIs (Ricky Ricardos) singing on territory is
that they sometimes enter into what I call a "percolation mode", where they
repeatedly sing the first phrase of their song, so it sounds like it is
percolating or bubbling right along.

David Suddjian
Ken Caryl Valley
Littleton, CO

Sent from my iPhone

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[cobirds] Lazuli Bunting - Dougla

['Hugh Kingery' via Colorado Birds]

 We just saw our first of season Lazuli Bunting -- sparkling blue, white, and 
tan in the bright sunlight.
 
Hugh & Urling

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[cobirds] Bird Conservancy of the Rockies - Chico Basin Ranch banding 4/30/22

[Chicobander]

Today picked up a bit with light winds off and on during the morning. 
Blue-gray Gnatcatcher and the Mountain race of White-crowned Sparrow were 
the new species captured this season. No sign of the Black-throated Gray 
this morning at the station. 2010 was the last time Chico Basin banded a 
Black-throated Gray Warbler.

15 New birds banded:
Blue-gray Gnatcatcher -1
Audubon's (Yellow-rumped) Warbler -3
Integrade Yellow-rumped Warbler -2 (looked mostly like the Myrtle race but 
had yellow tinge spot on throat.
House Wren -1
Hermit Thrush -1
Gambel's White-crowned Sparrow -2
Mountain White-crowned Sparrow -1
Song Sparrow -1
American Robin -3

2 Recaptures
Hermit thrush from Monday - It has increased its weight by 12% 
Brown Thrasher - banded previous years

We'll be open 6 days a week through May 27th, closed on Sundays (with the 
exception of being open on May 15th and closed on May 16th). We'll be 
returning from the first net run at about 6:30am. Stop by and visit us 
while you are here.

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[cobirds] Glossy Ibis, Chatfield SP (JeffCo)

[Evan Wilder]

Today at around 10:00 we spotted a group of four ibis west of the kingfisher 
parking lot on the south side of Chatfield. A group of more experienced birders 
helped confirm that one was a Glossy due to the lack of white face, dark eye 
(instead of red), and dark facial skin (instead of pink). Didn’t get great 
photos but others may have. The group flushed when an eagle flew over, but 
returned to the same spot not long after.

Other notable sightings included a first of season Wilson’s Warbler and a 
White-Throated Sparrow at the Audubon trails and ponds. Really enjoyable spring 
birding morning!

- Evan
Littleton

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[cobirds] Migration weather: next two days (5/1 - 5/2)

[Bryan Guarente]

COBirders,
An astute weather-watcher asked what it was going to look like for birds
with the next system coming in. They were ahead of my thinking for sure
(darn work getting in the way of fun).

*5/1 SE CO will see a connection from the Yucatan*
https://earth.nullschool.net/#2022/05/01/1200Z/wind/isobaric/850hPa/orthographic=-100.03,32.69,1951/loc=-103.708,37.700
(Green
circle is south of La Junta)

That map is quite telling of all of the overnight hours tonight.  That
pattern doesn't look much different if you spend some time flipping through
the times available on the wind maps from sundown tonight to sun-up
tomorrow.  So this is a long duration convergence pattern which is a GREAT
thing for SE CO.  Anywhere from Pueblo to Lamar (better towards Lamar than
Pueblo) could see some great movements into the area overnight.  I also
don't expect anything to leave the area from previous days, so we could see
a large diversity of birds (even higher than already going on).  For the
rest of CO tomorrow (Sunday), there won't be much movement of passerines
overnight.  Expect though that this will change throughout the day on
Sunday.  The connection from the Yucatan actually opens up throughout the
day tomorrow and the northern Front Range gets in on the action!

*5/2 Northern Front Range gets connected to the Yucatan*
https://earth.nullschool.net/#2022/05/02/1200Z/wind/isobaric/850hPa/orthographic=-98.23,34.96,1951/loc=-105.120,40.191
(Green
circle in Longmont for reference)

I expect that the northern Front Range will be the target on Monday after
SE CO's good chances.  The problem with Monday is the chance of rain
throughout the area.  This will make the birding maybe a bit more hit or
miss location-wise.  But that won't likely matter too much because the
birds WILL be on the move.  It may just be hard to guess the exact location
of the best birding Monday morning due to the possible rain.  But, get out
there and find the best spots and let everyone else know.  We'll be
watching.

Now, this actually brings up another point.  With the chance of rain, this
will mean the cloud cover will be lower, so overnight migrant listening
might be really good for CO standards.  Low cloud cover drives the birds to
be lower towards the ground, making calls easier to hear, and with the
winds coming from the Yucatan, we have a good chance of getting some good
night flight calls as long as it isn't raining where you are.

And finally, if you haven't believed me for all these years, or you need
more supporting information, you can check out birdcast's new "Migration
Dashboard" for every county and state in the US.
https://birdcast.info/migration-tools/migration-dashboard/. This brand new
website shows you estimated numbers of birds from real-time radar data over
your county or state of choice.  Enter your county or state into the text
field and press "Search".  This will take you to a page where you can
monitor the radar-estimated bird counts over your area.  There is a nice
archive to dig through as well to see how migration has been playing out
recently compared to historical numbers.  This page has been quite
instructive over the past couple weeks since it went live.  If you want to
see more about the dashboard you can check out the recorded webcast about
the new dashboard here:
https://academy.allaboutbirds.org/live-event/the-birdcast-dashboard-live-radar-tracking-of-bird-migration-in-your-county-and-state/

May the winds be ever in your (and the birds') favor.
Bryan

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[cobirds] Fwd: PRO/AH/EDR> Avian influenza, human (14): Americas (USA) H5N1

[Nicholas Komar]

I received this from a listserve for the Project for Monitoring Emerging 
Diseases (ProMED). It contains useful information related to the epidemic of 
avian flu in wild birds and poultry and the low risk of infection in humans in 
Colorado. I’ve observed several dead pelicans and gulls in Larimer County in 
recent days. 

>  From: ProMED  
> 
> Sent: Friday, April 29, 2022 3:56 PM
> To: Komar, Nick (CDC/DDID/NCEZID/DVBD) 
> Subject: PRO/AH/EDR> Avian influenza, human (14): Americas (USA) H5N1
> 
>  
> 
> AVIAN INFLUENZA, HUMAN (14): AMERICAS (USA) H5N1
> 
> A ProMED-mail post
> http://www.promedmail.org
> ProMED-mail is a program of the
> International Society for Infectious Diseases
> http://www.isid.org
> 
> Date: Thu 28 Apr 2022 21:46 EDT 
> Source: KKTV [edited] 
> https://www.kktv.com/2022/04/29/colorado-man-tests-positive-h5-bird-flu-1st-human-case-us-cdc-reports-public-health-risk-assessment-remains-low/
>  
> 
> 
> The 1st human case associated with the H5 bird flu in the United
> States was detected in a Colorado man. The Centers for Disease Control
> [and Prevention] (CDC) shared information on the case with the public
> on Thursday [28 Apr 2022], adding the "public health risk assessment
> remains low." The CDC adds people who have job-related or recreational
> exposures to infected birds are at a higher risk of infection and
> should take appropriate precautions. 
> 
> The CDC has been monitoring people exposed to H5N1 virus-infected
> birds since the outbreaks were first detected in wild birds and
> poultry in late 2021. To date [28 Apr 2022], H5N1 viruses have been
> found in US commercial and backyard birds in 29 states and in wild
> birds in 34 states. CDC has tracked the health of more than 2500
> people with exposures to H5N1 virus-infected birds, and this is the
> only case that has been found to date. Other people involved in the
> culling operation in Colorado have tested negative for H5 virus
> infection, but they are being tested again out of an abundance of
> caution. Several wild birds have tested positive for the virus in
> Colorado. 
> 
> "This is the 2nd human case associated with this specific group of H5
> viruses that are currently predominant, and the 1st case in the United
> States," part of a news release from the CDC reads. "The 1st case
> internationally occurred in December 2021 in the United Kingdom in a
> person who did not have any symptoms and who raised birds that became
> infected with H5N1 virus. More than 880 human infections with earlier
> H5N1 viruses have been reported since 2003 worldwide, however, the
> predominant H5N1 viruses now circulating among birds globally are
> different from earlier H5N1 viruses." 
> 
> The 40-year-old man who tested positive was isolating as of Thursday
> [28 Apr 2022], as he was only experiencing fatigue. The Colorado
> Department of Public Health and Environment (CDPHE) is reporting the
> positive result is due to direct exposure to infected poultry at a
> commercial farm in Montrose County. The person, who is an inmate at a
> state correctional facility in Delta County, was working with poultry
> as part of a pre-release employment program where participants have
> the opportunity to work for private employers and be paid a prevailing
> wage. The affected flock has been euthanized and disposed of under the
> guidance of the USDA and CDA. All members of the response team,
> including other inmate workers, were provided personal protective
> equipment while working on the farm. 
> 
> "We want to reassure Coloradans that the risk to them is low," said
> Dr. Rachel Herlihy, state epidemiologist, Colorado Department of
> Public Health and Environment. "I am grateful for the seamless
> collaboration between CDC, Department of Corrections, Department of
> Agriculture, and CDPHE, as we continue to monitor this virus and
> protect all Coloradans." CDPHE adds human infections of the H5 viruses
> are rare. 
> 
> [Byline: Tony Keith] 
> 
> -- 
> Communicated by: 
> Ryan McGinnis 
> r...@digicana.com
> 
> [The above report mentions the 1st human case of avian influenza
> A/H5N1 in the United States. The 1st human case with this specific
> virus group was reported in December 2021 in the UK. The predominant
> H5N1 viruses now circulating among birds globally are different from
> earlier H5N1 viruses. The case had a history of direct exposure to
> poultry. 
> 
> Typically human cases of zoonotic/avian influenza viruses are preceded
> by outbreaks in poultry; there have been numerous outbreaks of avian
> influenza A/H5N1 in USA and Canada, with loss of over 31 million birds
> in the US commercial poultry industry in 2022
> (https://www.wattagnet.com/blogs/27-agrifood-angle/post/44969-breaking-down-us-avian-flu-cases-by-flock-type).
>  
> 
> Mod.TG comments: "As one looks through the postings of the rampage of
> avian influenza, it becomes abundantly clear this virus is sweeping
> through the