[cobirds] NE Quadrant, Denver Area Birds

2018-02-24 Thread William H Kaempfer
John Vanderpoel and I headed into the NE quadrant of the Denver area today 
(north of I-10 and east of I-25) in order to try to escape the high wind 
forecast.  We had great fortune in our birding adventures with upward of 57 
species for the day including several rarities and surprises.

We started off at the Firestone Recreation Area (MIlavec Reservoir) at Colorado 
and Grant in Firestone.  This large reservoir has a few bubblers that keep open 
water and there were several thousand geese on the ice around open spots when 
we got there.  Included in these thousands of white-cheeked geese were three 
Snow Geese and a Greater White-fronted Goose.  We then made our way to the 
Brighton Water Treatment Facility located at US 85 and 168th (the Weld/Adams 
County Line).  This spot has a few warmed ponds and a trail along the South 
Platte that offer good cold-weather birding opportunities.  Best here were four 
American Pipits along the river.

We continued to Barr Lake where we had usual offerings including a couple of 
Ring-necked Pheasants.  Setting off down Piccadilly toward DIA, and then 
turning east on 120th Ave. we were surprised by a black corvid that showed all 
the right field marks at close range for Chihuahuan Raven.  It was feeding in 
the road on a dead prairie dog, and we were both struck by its intermediate 
size, rounded tail and bristle covered bill.  Just down the road from this spot 
we encountered a small flock of Horned Larks with a couple of slightly smaller 
Lapland Longspurs easily picked out in the flock.

We made the loop around DIA to get to First Creek which was really windy and 
pretty disappointing, so we started to make our way home with a stop at LUNA 
Reservoir along the way.  This Thornton water supply reservoir was 85% frozen, 
but hosted close to 2,000 geese, unfortunately far away and closely packed, for 
the most part.  We were able to find small numbers of Iceland (Thayer's) and 
Lesser Black-backed plus one Great Black-backed that towered over even the 
large number of Herring Gulls present.

Bill Kaempfer
Boulder

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[cobirds] Nat Geo on bird migration

2018-02-24 Thread Leon Bright
COBirders--  The March, 2018 issue of National Geographic magazine, as part
of its "Year of the Bird" series, has a very informative feature on
migration.  For those of us with little formal academic background in
ornithology the essay and maps are quite accessible.  If you would like to
learn of the latest findings in research on avian migration you will be
rewarded by checking out "Epic Journeys."  [My only association with
National Geographic is as a subscriber and field guide owner of editions two
through seven.]

Leon Bright, Pueblo

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[cobirds] Colorado Rare Bird Alert, 24 February 2018

2018-02-24 Thread Joyce Takamine
Compiler:   Joyce Takamine
e-mail:  RBA AT cobirds.org
Date:February 24, 2018

This is the Rare Bird Alert for Saturday, February 24  sponsored by Denver
Field Ornithologists and the Bird Conservancy of the Rockies.

Highlight species include: (* indicates new information on this species)
NOTE:  The RBA is now using the new AOU checklist and the order of families
has changed.
Greater White-fronted Goose (El Paso, Washington, Weld)
BRANT (Arapahoe)
Trumpeter Swan (Fremont, Yuma)
Wood Duck (Prowers)
Greater Scaup (Weld)
White-winged Scoter (Arapahoe, Jefferson)
Long-tailed Duck (Montezuma)
Barrow’s Goldeneye (Adams, Arapahoe, El Paso, Montezuma, Weld)
Red-breasted Merganser (Montezuma)
Clark’s Grebe (Fremont)
Greater Roadrunner (El Paso)
Sandhill Crane (Mesa, Pueblo, Rio Grande)
Spotted Sandpiper (Arapahoe, Mesa)
Mew Gull  (Weld)
California Gull (Mesa)
Iceland Gull (El Paso, Pueblo)
Great Black-backed Gull (Pueblo)
YELLOW-BILLED LOON (Arapahoe, Jefferson)
Double-crested Cormorant (Pueblo)
American White Pelican (Weld)
Osprey (Larimer)
Northern Goshawk (Jefferson)
HARRIS’S HAWK (Larimer)
Swainson’s Hawk (Prowers)
Snowy Owl (*Boulder)
Red-bellied Woodpecker (Washington)
Chihuahuan Raven (Fremont)
Pygmy Nuthatch (Broomfield)
Winter Wren (Archuleta, Morgan)
Golden-crowned Kinglet (Denver)
Eastern Bluebird (Washington)
Mountain Bluebird (Weld)
Hermit Thrush (Washington)
Gray Catbird (Arapahoe)
Northern Mockingbird (Adams)
Common Redpoll (Arapahoe, Denver)
Red Crossbill (Arapahoe)
Lapland Longspur (Douglas)
Field Sparrow (Baca)
Sagebrush Sparrow (Mesa)
Fox Sparrow (*Delta, *Larimer)
Lincoln’s Sparrow (*La Plata, Mesa)
Swamp Sparrow (*Arapahoe, Boulder)
White-throated Sparrow (Arapahoe)
Harris’s Sparrow (Arapahoe, El Paso)
Brown-headed Cowbird (El Paso, Weld)
Rusty Blackbird (Morgan)
Pine Warbler (Larimer)
Yellow-rumped Warbler (Arapahoe, Archuleta, Jefferson, Larimer, Mesa,
Prowers, Pueblo)
Northern Cardinal (Prowers)

ADAMS COUNTY:
---On February 18 at Big Dry Creek OS, David Ely reported Northern
Mockingbird.
---On February 18 at South Platte River  Sand Creek mouth, Riley Morris
reported Black Phoebe.  This would be new county record if accepted.

ARAPAHOE COUNTY:

---On February 18 at South Platte Reservoir, Anna Lenshek reported
YELLOW-BILLED LOON.  On February 19 at South Plate Reservoir, Alan and
MaryLynne Ketcham reported YELLOW-BILLED LOON and Derek Lecy reported
White-winged Scoter and YELLOW-BILLED LOON.  On February 20 at South Platte
Reservoir, David Suddjian reported White-winged Scoter and YELLOW-BILLED
LOON.  Suddjian reported that the SW Bay was frozen.   On February 22 at
South Platte Reservoir, David Suddjian, Cheri Phillips, Norm Lewis, and Ted
Uhlemann reported White-winged Scoter.
---On February 20 at South Platte Park, Ben Sampson reported Yellow-rumped
Warbler near Nature Center.  On February 22 at South Platte Park Carson
Nature Center, Bill Schreitz reported 2 f Barrow’s Goldeneyes and 5
Yellow-rumped (Audubon’s) Warblers in trees NE side of bicycle bridge.
---On February 18 at Ketring Park, Cheryl Teuton and several other birders
reported BLACK BRANT.  The BRANT was also seen at neighboring Gallup Park.
 On February 19 at Ketring Park, Alan and MaryLynne Ketcham reported
BRANT.  On Februaory 22 at Ketring Park, Diane Roberts reported Swamp
Sparrow.
---On February 18 at Chapel Hill Memorial gardens, Jared Del Rosso reported
Harris’s Sparrow.
---On February 18 at Gallup Park in Littleton, Jared Del Rosso and
Christian Hagenlocher reported BLACK BRANT.
---On February 18 at St Mary’s Catholic Church lower area, David Suddjian
reported Say’s Phoebe
---On February 21 at Centennial Park, Edward Donnan reported Spotted
Sandpiper.
---On February 21 at Hawley Road, Doug Kibbe reported 18 Common Redpoll.
---On February 22 at Inverness Golf Course, Mary O’Connor reported 33 Red
Crossbills.

ARCHULETA COUNTY:
---On February 18 on San Juan River Walk in Pagosa Springs, Ryan Votta
reported Yellow-rumped Warbler and Jim Beatty reported Winter Wren.

BOULDER COUNTY:
---On February 20 and 21 at Pleasant View Soccer Field, Ernest Crvich
reported Swamp Sparrow.
---On February 23 on Nelson Road, Sue Riffe reported a juv Snowy Owl flew
over the road flying NW.  She was about a mile east of US 36.

DELTA COUNTY:
On February 23 at Paonia Forest Service Office feeder, Dennis Garrison
reported that the Fox Sparrow continues.

DENVER COUNTY:
---On February 21 near DIA on Hudson Road, Doug Kibbe reported 2 Common
Redpoll.
---On February 22 at Denver Botanic Gardens and Cheesman Park, Rebecca
Laroche reported 2 Golden-crowned Kinglets.

DOUGLAS COUNTY:
---On February 19 at Chatfield SP Model Airplane Field, Doug Kibbe reported
Lapland Longspurs.  Doug warned that there is no access to Chatfield from
Wadsworth because of construction.  On February 22 Tom Wilbering and Diane
Roberts reported Lapland Longspur at Chatfield SP Model Airplane Field.

EL PASO COUNTY:
---On February 21 at Monument