[cobirds] Marston Reservoir, Denver Co.

[Tina Jones]

Marston is pretty high water wise, with just a few mudbanks. There were a few 
new birds since looking at the lake the other day.1, pair of Greater Scaup, 
along with many Lesser Scaupmany, many, Violet-green and Tree swallowsWestern 
Grebe and Horned GrebeAmerican White PelicanGadwallGreen-winged TealGreat Blue 
Heron and Double-crested Cormorant were all in the Rookery on the west 
inaccessible side of the lake.1,Common Loonand some of the very common 
Waterfowl were present happy birding!Tina JonesLittleton, Jefferson County, CO  
 

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[cobirds] Great Horned Owl - Adams County

[Barry]

Several times recently while driving past 120th and Federal in
Westminster, we thought we saw an owl in the trees on the southwest
corner. Today, I was able to slow down and get a better look. I
definitely see the familiar outline of a Great Horned Owl on one of
the nests. The traffic is very heavy on that corner, on three sides,
with no safe place to stop.

As you probably remember, Great Horned Owls nested in that same tree a
couple of years ago. Back then, someone (the city?) put up warning
signs to keep people from stopping there. I think that needs to be
done again, both for the safety of onlookers and to avoid disturbing
the owls.

- Barry Gingrich
  Broomfield County

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[cobirds] DFO April 19 Rookeries Field Trip

[mcburg...@juno.com]

A word about the DFO Rookeries Field Trip on April 19 meeting at 9am at the 
Parker North Water & Sanitation Water Reclamation Facility, 18100 E Woodman Dr, 
Parker.  You must be on south-bound Parker Rd to turn into Woodman Dr, the 
first stop light north of C-470.  On this trip you will see the colonial 
nesters: Great Blue Heron, DC Cormorant, Black-Cr Night-Heron, and Snowy 
Egrets.  Leader Mary Cay Burger (303.771.3431) mcburg...@juno.com  or 
www.dfobirders.org Mary Cay Burger10826 E Maplewood PlEnglewood, Co 
80111303-771-3431mcburg...@juno.com

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[cobirds] Snowy Egrets, Black-crowned Night-Heron, Denver

[Kayleen A Niyo]

Sorry for the late post, but Bob just reminded me!  Mary and I stopped at
Duck and Ferni Lakes after the DFO board meeting at DMNS on Wed.  Trees on
the island in Duck L were full of nesting Double-crested Cormorants.  Dozens
of Snowy Egrets were on the little island in Ferni L and flying to feed
along the SE shore of that lake.  We saw one adult Black-crowned Night-Heron
fly from Duck to Ferni L, so there are probably more.  Mary is leading a DFO
rookery trip to these lakes and Parker on Thurs so we will have more time to
scope it.

 

Kay

Kayleen A. Niyo, Ph.D.
Niyo Scientific Communications
Kay Niyo Photography
  k...@kayniyo.com

  www.KayNiyo.com
__
5651 Garnet Street
Golden, CO 80403
Phone: (303) 679-6646
Fax: (866) 849-8013 

 

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[cobirds] White-faced Ibis at Cherry Creek State Park, Arapahoe County

[Cheryl Teuton]

At about 1PM today there was a flock of about 10 White-faced Ibis in the
(flooded) Cottonwood Marsh Wetlands area.  Visible from the Belleview Ave
side, or by parking at the Cottonwood Marsh trailhead and walking in toward
the west side.  Also a large (about 200 birds) mixed flock of swallows over
the reservoir near the marina, battling the fierce winds.  We tallied Barn,
Tree and Cliff Swallows.  Watching them in the wind, you had to appreciate
that migration is hard work!

Cheryl Teuton

Aurora CO

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[cobirds] Snowy Egret, Denver Co.

[Andrews Robert]

Hello all,

Early Sunday afternoon there were 12 Snowy Egrets in Garland Park, on Holly 
just north of Cherry Creek in southeast Denver Co.

Bob Andrews
Englewood

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[cobirds] Spring Arivals, Boulder County

[JohnT]

Cobirds:
   Been doing some quick surveys around the Boulder area the
last few days.  Here's a list of new arivals, and some spring nesting
activity:

W/S - Walden Sawhills complex
Teller Lake 1 - TL1
Teller Lake 5 - TL5
WR - White Rocks Trail
BMP - Boulder Mt Park
BC - Boulder County general
S - Sombrero Marsh


Pied-billed - several calling - W/S
American white pelican - 12 - flying over WR
Great egret - 1 - TL5
Great blue heron -  BC - the heron rookery west of Cottonwood Marsh
has been active for several weeks.
Northern shoveler - 30 - S
Gadwall - 40 - S
Turkey vulture - 5 - BMP
Osprey - several pairs, actively nesting - BC
Red tailed hawk - actively nesting - BC
Swainson's hawk - pair at 75th and Baseline have returned.
American kestrel - actively nesting - BC
Ring necked pheasant -  76th and South Boulder Rd. -  several seen
over a month - part of a feral remnant population that's been in the
neighborhood for years.
Ring necked pheasant - TL1 - one calling - remnant feral population
that has inhabited this area for decades.
Killdeer - throughout BC
Greater yellowlegs - 1 at TL1
Wilson's snipe - 1 at W/S, 1 at South Boulder Rec Center
Mourning dove - in scant numbers - BC - should be lots more
Eurasian collared dove - lots, numbers increasing, active mating
behavior,  - BC
Broad tailed hummingbird - 1 male - base of Flagstaff Mt Trail
Northern flicker - actively drumming, and cavity building - BC
Downy woodpecker - chases, drumming, mating behavior, - BC
Tree swallow - groups moving through W/S
Bushtit - pair - Twin Lakes area
Ruby crowned kinglet - actively singing, 11 - BMP
Brown creeper - 2 - actively singing - BMP
Mountain bluebird - 1 - at NCAR
American thrush (aka: robin) - on nests, lots - BC
Myrtle warbler - 1 S/W, 1 TL5, 1 at Sombrero Marsh
Audubon's warbler - 1 at Sombrero Marsh
Spotted towhee - all males, singing - most at Gregory Canyon, and
throughout BC, numbers increasing.
White crowned sparrow - 6 at W/S
Song sparrow - lots, actively singing - BC
GOLDEN CROWED SPARROW - 1 still persists at the Teller Lake 5 parking
lot
Gray headed junco - actively singing - throughout BMP
Western meadowlark - lots, actively singing - South Boulder Rec Center
and BC
Red winged blackbird - tons - active singing, chases, mating,
territorial fights - drowning out the songs of other birds at
Cottonwood Marsh early morning.
Yellow headed blackbird - 2 at S/W - singing (if you can call it that)
Great tailed grackle - at least 1 singing and callinng at Cottonwood
Marsh
Common grackle - starting to fill up in neiborhoods throughout BC
House finch - actively singing and nest building for at least a month
now.
American goldfinch - lots, singing and chases - BC

Blooming:  spring beauties, pasque flowers, dandelion, domestic apple,
wild plum (peak or past peak), chokecherry (just starting), hawthorn
(just starting) oregon grape / holly grape (at peak), bladderpod, sand
lillies, yellow violet, vetch ssp., bastard toadflax (native species),
bedstraw, cranesbill, golden banner (just starting), false dandelion
(native), mouse-eared chickweed, waterleaf, wyeth bisquitroot, desert
parsley, skunkbush (just starting), red currant, golden currant,
bluebells, among others.

Birds are right on time;  flowers are early.   John T  (Tumasonis),
Louisville CO

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[cobirds] Fox Sparrow Still Present

[Greg Pasquariello]

The Fox Sparrow is still present at Red Rocks, and was kind enough to show 
itself on the bottom feeder 15 seconds after I arrived. 

Regards
-Greg Pasquariello

Sent from my iPhone

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[cobirds] 4 Mountain Plover on the grasslands

[Skyler Bol]

All,
Yesterday my family and I decided to go out to Dixon Reservoir for
spring migrants. Nothing much besides an early Lincoln's Sparrow
originally found by Brad Biggerstaff. We then headed out to the
grasslands and Crow Valley Campground. Not many birds but I am sad to
say a tree with a cavity where Eastern Screech-Owls have been located
in the past has fallen down. In the Briggsdale Cemetery there was 1
Say's Phoebe and a Vesper Sparrow. Along the auto tour loop we found
40 McCown's Longspurs, 5 Vesper Sparrows, 4 Loggerhead Shrikes, 4
Say's Phoebes. On county road 104 past the turn off for the auto tour
loop a pair of Mountain Plover were chasing one another in a burnt
field. We took the road at the end of 104 south and found another pair
of plovers. Spring is here!
Skyler
Ft. Collins CO

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[cobirds] Golden-crowned Sparrow - Red Rocks - Jeffco

[mike]

Good Morning,

When I arrived at the Red Rocks feeders this morning Art Hudak was  
there and had already put seed out.  In the hour plus that we watched,  
we saw the Golden-crowned Sparrow once - the Slate-colored Fox Sparrow  
did not appear.
This was a real surprise as the Fox sparrow was seen yesterday  
evening, and with the winter-like weather I thought the bird would be  
at the feeders bright and early this morning.  Only new birds at the  
feeders were some brightly colored Pine Siskins.


Mike Henwood
Morrison
Jefferson County

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[cobirds] HSR: Dinosaur Ridge (14 Apr 2012) 58 Raptors

[reports]

Dinosaur Ridge
Colorado, USA
Daily Raptor Counts: Apr 14, 2012
---

SpeciesDay's CountMonth Total   Season Total
-- --- -- --
Black Vulture0  0  0
Turkey Vulture   7 42 43
Osprey   2  9 10
Bald Eagle   0  1  7
Northern Harrier 3  4  4
Sharp-shinned Hawk   5 10 13
Cooper's Hawk7 26 34
Northern Goshawk 0  0  0
Red-shouldered Hawk  0  0  0
Broad-winged Hawk0  0  0
Red-tailed Hawk  4 55206
Rough-legged Hawk0  0  2
Swainson's Hawk  0  0  1
Ferruginous Hawk 0  0  2
Golden Eagle 0  2  9
American Kestrel20 44 64
Merlin   1  2  4
Peregrine Falcon 0  0  3
Prairie Falcon   0  2  8
Mississippi Kite 0  0  0
Unknown Accipiter7 16 20
Unknown Buteo1  4 12
Unknown Falcon   1  1  2
Unknown Eagle0  0  0
Unknown Raptor   0  2  6

Total:  58220450
--

Observation start time: 08:00:00 
Observation end   time: 15:00:00 
Total observation time: 7 hours

Official Counter:Bill Wuerthele

Observers:Lee Farrell, Scott Severs

Visitors:
Celia Greenman spent four hours on the Ridge helping us with spotting and
identifying raptors.
A number of hikers and bikers stopped by and inquired about Hawk Watch
(one group visiting from Alaska).  Several were very interested to learn
they could follow the seasonal raptor count for Dinosaur Ridge and other
sites at www.hawkcount.org.  One group of hikers asked if there had been
any recent Roadrunner sightings. 


Weather:
A mostly sunny morning gave way to a very cloudy afternoon (cloud cover
100% by 2:00 p.m.).  No rain at the site, but it appeared to be raining to
the northwest and southwest as we left.  Light easterly winds shifted to
the northeast in the early afternoon and became steadily stronger.  By 2:00
p.m. the winds were a steady 5 B (22 mph), with gusts to 6 B (30 mph). 
Temperatures ranged from 9.4 to 12.7 C.  Temperature and humidity data are
from the Weather Underground station at Rooney Road.  No BP data are
available from that station.


Raptor Observations:
Migrating raptors:  In the morning and early afternoon, many of the
migrating raptors were moving along the west ridge, requiring spotting
scopes for identification.  As the wind shifted to the northeast, we seemed
to get more birds coming close to the ridge with a number of nice naked-eye
views.  Especially nice was a very close-in view of an adult Cooper’s
Hawk below eye level.  Eight migratory species were seen today with 58
individuals counted.  American Kestrels and Accipiters were the most
prevalent.

Non-migrating raptors included: an Osprey, a Bald Eagle, a Golden Eagle, a
Peregrine Falcon, Red-tailed Hawks, American Kestrels, Cooper’s Hawks and
Turkey Vultures.  The odd event - a male and two female local American
Kestrels landed on a power line and perched quite close together for a time
before the male finally chased off one of the females.


Non-raptor Observations:
Non-raptors included: Barn Swallows, White-throated Swifts, Yellow-rumped
Warblers, Spotted Towhees, Western Meadowlarks, Common Ravens, American
Crows, Western Scrub-Jays, American Robins, Black-billed Magpies, a Rock
Pigeon, a Say’s Phoebe, and a male Broad-tailed Hummingbird winging by
the west side of the observation site.

Report submitted by Rocky Mountain Bird Observatory (jeff.bi...@rmbo.org)
Dinosaur Ridge information may be found at:
http://www.rmbo.org/


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
H

Re: [cobirds] Canada Goose X

[Nick Komar]

This is a Brant, about 1 years old probably.

Nick Komar
Fort Collins

From: Julia Bond 
Sent: Sunday, April 15, 2012 7:36 AM
To: cobirds@googlegroups.com 
Subject: [cobirds] Canada Goose X

And as I scroll through his pics, it looks as though he may have taken it in NJ 
or NYC.  I thought he had taken it here.  There is a better shot of a group of 
these birds in his pics.  Thanks again. 

-- 
Julia Bond
Boulder, CO

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[cobirds] Canada Goose X

[Julia Bond]

And as I scroll through his pics, it looks as though he may have taken it
in NJ or NYC.  I thought he had taken it here.  There is a better shot of a
group of these birds in his pics.  Thanks again.

-- 
Julia Bond
Boulder, CO

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[cobirds] Canada Goose X

[Julia Bond]

Me brother photographed this bird yesterday and was wondering exactly what
it was.   Any guesses?

http://www.panoramio.com/photo/70292490

Thanks :)

-- 
Julia Bond
Boulder, CO

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[cobirds] Colorado Rare Bird Alert for Sunday, April 15, 2012

[Joyce Takamine]

 Compiler:   Joyce Takamine
Date: April 15, 2012
e-mail:   rba AT cfobirds.org
phone:   303-659-8750

This is the Colorado Rare Birds Alert for Sunday, April 15, 2012, sponsored
by Denver Field Ornithologists and the Rocky Mountain Bird Observatory.  If
you are phoning in a message, you can skip the recording by pressing the
star Key (*) on your phone at any time.  Please leave your name, phone
number, detailed directions, including county and dates for each sighting.
 It would be helpful if you would spell your last name.

Highlight species include: (*denotes that there is new information on this
species in this report)

TRUMPETER SWAN (Larimer)
MEXICAN DUCK (Pueblo, Weld)
Red-necked Grebe (Pueblo)
LEAST BITTERN (Fremont)
GLOSSY IBIS (Montrose)
RUFF (Yuma)
LAUGHING GULL (*Pueblo)
Lesser Black-backed Gull (Larimer)
White-winged Dove (Boulder, Mesa)
Greater Roadrunner (Huerfano)
Black Phoebe (Fremont)
Eastern Phoebe (Douglas/Jefferson, Fremont)
Bewick's Wren (*Boulder)
Northern Parula (El Paso)
BLACK-CHINNED SPARROW (Mesa)
Black-throated Sparrow (Araphoe)
Sage Sparrow (Boulder)
Fox Sparrow (*Jefferson)
GOLDEN-CROWNED SPARROW (Jefferson, Prowers)
Gray-crowned Rosy-Finch (Teller)
Black Rosy-Finch (Teller)

Please note, detailed directions to most of the following locations can be
found on the Colorado County Birding Website:
 
http://www.coloradocountybirding.com/index.php

Arapahoe County:
--A Black-throated Sparrow was reported by Stratton on Lakeview St near
Ketring Lake in Littleton on April 13.

Boulder County:
--A singing White-winged Dove was reported by Pieplow in the Gunbarrel area
of Boulder on April 5.  Directions:  Take Jay Road east from the Diagonal
Hwy, go north on Spine, turn right at the third intersection onto White
Rock Circle.  Drive about 2 blocks to where the road begins curving left
and a park appears on the right.  Park in the area.  The bird was singing
from the top of a cottonwood tree along the stream that forms the southern
border of the park
--A Sage Sparrow was reported by Floyd at the dam at Stearns Lake in
Boulder County on April 7.  The sparrow was seen again on April 8 by Gent.
--A singing Bewick's Wren was reported by Mlodinow at the far west end of
Apple Valley Road in Lyons on April 12.  Take the second (left) turn onto
Apple Valley Road.  The Bewick's Wren was re-found by Waltman on April 13.
--A Bewick's Wren interrupted the CFO Board Meeting at the City of  Boulder
Open Space and Mountain Parks at 66 S Cherryvale Rd on April 14.

Douglas/Jefferson County:
An Eastern Phoebe was reported by Kibbe at "Phoebe Bridge" near the
mouth of Plum Creek at Chatfield State Park on March 28.  On March 29,
Prickett reported a pair of Eastern Phoebes at Phoebe Bridge.  On March 31,
Bob Spencer reported seeing one Eastern Phoebe and later his son saw the
pair of Eastern Phoebes at Phoebe Bridge.  On April 7, Kingery reported two
Eastern Phoebes at Kingfisher Bridge at Chatfield.  On April 9, Kibbe
reported both pairs of Eastern Phoebes at their respective bridges at
Chatfield.

El Paso County:
--A Northern Parula was found by Petterson at Fountain Creek Regional Park
on April 10.

Fremont County:
--At Holcim Wetlands on April 8, Mlodinow reported hearing a singing LEAST
BITTERN.
 --Black and Eastern Phoebes were reported by Mlodinow at Florence River
Park on April 8.

Huerfano County:
--A Greater Roadrunner was reported by Neldner at Lathrop SP on April 5.

Jefferson County:
--The GOLDEN-CROWNED SPARROW at Red Rocks Trading Post feeders continued to
be seen through April 13, as reported by Henwood.
--A Slate-colored Fox Sparrow was reported by Henwood at Red Rocks Trading
Post feeders on April 14.

Larimer County:
--The TRUMPETER SWAN at Duck Lake was reported by Komar on April 8.
 Directions:  Take Windsor Exit from I-25 (Exit 262), go west on CR 32
(Carpenter Road) 2 miles and pull over to view the lake on the left side.
 Beware of high-speed traffic.
--A Broad-winged Hawk was reported by Leatherman flying over Grandview
Cemetery in Fort Collins on April 11.

Mesa County:
--A singing BLACK-CHINNED SPARROW was reported by Arnold in Devils Kitchen
in Colorado National Monument on April 9.  Arnold refound the BLACK-CHINNED
SPARROW on April 12 with possibly a second bird.


Montrose County:
--A GLOSSY IBIS was reported by Dexter at a farm pond 1/2 mile west of
Nucla on Fifth Ave just east of the sewer lagoons on April 5.

Prowers County:
--An imm GOLDEN-CROWNED SPARROW was reported by Ashby at Lamar Community
College Woods on April 8.

Pueblo County:
--A breeding plumaged Red-necked Grebe was reported by Mlodinow at Pueblo
Reservoir near the east end on April 8.
--On April 8, Mlodinow reported that the MEXICAN DUCK continues at Pueblo
City Park.
--An ad LAUGHING GULL was reported by Percival flying over N Picnic Road at
Pueblo Reservoir on April 14.

Teller County:
--About 25 Black Rosy-Finches, and 5-10  each of Gray-crow