Date: 12/23/17 3:20 am
From: Amy Davenport <cobussec...> [cobirders] <cobirders-noreply...>
Subject: [cobirders] Colorado Rare Bird Alert for December 23, 2017
Hello cobirders

Our report is called Rare Bird Alert because search engines find it
better. The report is really "Uncommon Bird Report" Not all uncommon
birds are rare birds. Birders may want to know where to see them anyway!
Without being a member, "cobirders" can be read at:

Report Uncommon Birds at: 303-324-7994 or

NOTE: Reports do not confirm sightings. Choose to chase at your own risk
and expense.!
NOTE: To reduce length of report, only recent sightings listed; visit
Colorado Birding Society's website everyday for additional sightings!

Reports added: 12/22/2017
Adams (Tundra Swan)
Arapahoe (Long-tailed Duck, White-winged Scoter, Greater Scaup, Eastern
Boulder (Red-necked Grebe, Pacific Loon, Common Loon, White-throated
Denver (Harris's Sparrow, Pacific Loon)
Jefferson (Yellow-throated Warbler)
Jefferson/Douglas (Bonaparte's Gull)
Logan (Eastern Screech-Owl, Red-bellied Woodpecker)
Logan/Sedgwick (Greater White-fronted Goose)
Logan/Washington (Eastern Screech-Owl)
Montrose (Pinyon Jay)
Morgan (Long-eared Owl)
Washington (Snowy Owl)
Weld (Lesser Black-backed Gull, Greater White-fronted Goose, Lapland
Yuma (Eastern Screech-Owl, Purple Finch, Eastern Bluebird, Common Redpoll,
Greater Prairie-Chicken, Red-bellied Woodpecker, Harris's Sparrow, Swamp


Adams County
++++Rocky Mountain Arsenal
Tundra Swan (Stevens/Warren) (first 12/15) last 12/20
Trumpeter Swan --Lower Derby Lake (DeFonso/Bryan Johnson) (first 12/10)
last 12/13
Tundra Swan (Snyder/Diane Roberts) (first 11/12) last 11/20
(NOTE: all Lower Derby Lake, all sightings confirmed by photos)
Swamp Sparrow --south side Marys Lake (Warren) last 12/20
++++Lowell Ponds Wildlife Area
Greater White-fronted Goose (Gabriel Wiltse) first 12/20

Arapahoe County
++++Aurora Reservoir
Long-tailed Duck (2 female, 1 male) (Richard Stevens/Stevens) (first
12/13) 2; last 12/22
White-winged Scoter (male, female) (Richard Stevens/Stevens) (first
12/13) 2; last 12/22
Greater White-fronted Goose (Meg Reck) last 12/20
++++South Platte Park Reservoir & Area
Greater Scaup (2) (Christopher Warneke/Michael Yuan) (first 11/24) 2;
last 12/22
++++Ketring Park and Lake
Eastern Screech-Owl (Alison Hixon) last 12/22
++++Cherry Creek Reservoir
Common Loon (Diane Roberts/Dale Pate) (first 12/7) last 12/20
++++Chapel Hill Memorial Gardens
Harris's Sparrow --hedgerow/western edge (Jared Del Rosso) (first 12/3)
last 12/19

Boulder County
++++Valmont Reservoir Complex
Red-necked Grebe (2) (Michael Lamson/Jeff Parks) (first 12/16) 3; last
Pacific Loon (Bill Kaempfer/Jeff Parks) (first 12/10) last 12/22
Common Loon (Kaempfer/Jeff Parks) (first 12/10) last 12/22
White-throated Sparrow (4) (Parks) reported 12/22
++++Twin Lakes Open Space
Hammond's Flycatcher (Jeff Parks/Jeff Parks) (first 11/19) last 12/20
++++Golden Ponds
Swamp Sparrow (3) (Luke Pheneger) (first 12/16) 2; last 12/20

Denver County
++++First Creek Trail
Harris's Sparrow (John Breitsch) (first 11/29) Denver Cty; last 12/22
Latest: second bird: under chainlink fence at Denver County trailhead)
++++Marston Reservoir
Pacific Loon (Alex Hopping/Betty Glass) (first 12/16) last 12/21
Common Loon (Alex Hopping/DeFonso) (first 12/16) last 12/19

El Paso County
++++Cresterra Road, Fountain
Snow Bunting --flew toward Big Johnson Reservoir (Cici Lee) first 12/21
++++1900-2000 Sundown Drive, Colorado Springs
Yellow-bellied Sapsucker (David Tonnessen) first 12/21
++++Red Rock Canyon Open Space
Harris's Sparrow (Jim Merritt) (first 12/10) last 12/18

Jefferson County
++++Belmar Place apartment Lake (#640 & 620)
Yellow-throated Warbler (Bill Eley/Patrick O'Driscoll) (first 12/16) last
Prairie Warbler (Frank Farrell/Kevin DeBoer) (first 12/16) last 12/20
++++Clement Park
Greater White-fronted Goose (Christopher Warneke) last 12/21

Jefferson/Douglas Counties
++++Chatfield Reservoir
Bonaparte's Gull --sand spit (Gregg Goodrich:Anna Troth) first 12/22
Great Black-backed Gull (Tom Wilberding) reported 12/20

Larimer County
++++Carriage Hills Area
Brown-capped Rosy Finch (69) --(Best during a snowstorm) (Scott
Rashid/M.OB.) (first 11/7) 1; last 12/21
Gray-crowned Rosy Finch (9) --(Best during a snowstorm) (Scott
Rashid/M.OB.) (first 11/7) 1; last 12/21
++++Running Deer Natural Area
Harris's Hawk --north & south of Colorado Visitor's Center (David
Wade/Scott Somershoe) (first 12/10) last 12/20
++++Cache La Poudre Drive
Palm Warbler --2270 (Georgia Doyle/Austin Hess) (first 12/16) last 12/20
++++Lions Open Space
Stub-tailed Wren (probable: Winter Wren) (Austin Hess:Gwen Moore/Georgia
Doyle) (first 12/16) last 12/20
++++Lake Loveland
Lesser Black-backed Gull (Michael Britten) 4; last 12/20
++++College Lake
Lesser Black-backed Gull (Nick Komar) (first 12/18) last 12/20

Pueblo County
++++Roselawn Cemetery
Yellow-bellied Sapsucker (Gregg Goodrich/Anna Troth) (first 12/18) last
++++Runyon Lake
Mew Gull (adult) (Percival) first 12/20
++++40th Lane
Western Screech-Owl (Van Truan) first 12/20
++++Pueblo Reservoir
Prairie Warbler --below dam (Leon Bright/Percival) (first 12/5) last 12/19
++++Pueblo City Park
Greater Scaup (1) --Goodnight trail (Joel & Dale Adams/Richard Bunn)
(first 12/10) last 12/19
Barrow's Goldeneye (2) --Goodnight Trail (Jane Stulp/Richard Bunn) (first
12/9) 3; last 12/19

Weld County
++++Windsor Lake
Lesser Black-backed Gull (5) (Mlodinow/Bert Harris) (first 12/12) 1; last
Greater White-fronted Goose (Bert Harris) last 12/22
Long-tailed Duck (Gary Lefko/Jim Nachel) (first 12/11) last 12/20
Glaucous Gull (Bruening/Ryan Graves) (first 12/18) last 12/20
++++County Road 122/CR 49
Lapland Longspur (32) --northwest corner (Gary Lefko) first 12/20
++++Union Reservoir
Bonaparte's Gull (3) (Mlodinow:Pheneger/Mlodinow) (first 10/17) 27; last
++++Greeley Gravel Ponds at 35th Avenue
Great Egret (late) (Shawn Mason) first 12/19


Baca County
++++Southeast of Two Buttes Reservoir & area
Snowy Owl (Preston Larimer) first 12/21
++++Cottonwood Canyon (15th annual Christmas Count)
Mississippi Kite (very late, not without precedent: 12/31/1993) (CoBus
group) first 12/19
Western Screech-Owl (CoBus group) 4; last 12/19
Northern Saw-whet Owl (CoBus group) 3; last 12/19
Barn Owl (CoBus group) last 12/19
Short-eared Owl (2) (CoBus group) last 12/19
Long-eared Owl (CoBus group) last 12/19
Winter Wren (CoBus group) last 12/19
Juniper Titmouse (2) (CoBus group) first 12/19
Pine Warbler (CoBus group) first 12/19
Rufous-crowned Sparrow (CoBus group) 8; last 12/19
Common Redpoll (Mlodinow/CoBus group) (first 12/15) last 12/19
Northern Cardinal (CoBus group) last 12/19
(all above: Cottonwood Canyon)
Western Screech-Owl (CoBus group) 1; last 12/19
Northern Saw-whet Owl (CoBus group) 1; last 12/19
Winter Wren (CoBus group) last 12/19
Curve-billed Thrasher (CoBus group) last 12/19
(above: Carrizo picnic area)

Otero County
++++Lake Holbrook
White-winged Scoter (Sue Riffe:Gwen Moore/Richard Bunn) (first 12/15)
last 12/20
++++South of La Junta
Snowy Owl --CR 803/east/CR 25 (Kim Score/Leatherman:Thompson) (first
12/17) last 12/18
Snowy Owl --CR 15/south/CR N (Robin Bay) first 12/16


Logan County
++++Tamarack Ranch Wildlife Area
Eastern Screech-Owl (1) (Bill Kaempfer) last 12/22
Red-bellied Woodpecker (2) (Rebecca Laroche) last 12/22
++++I76 & Galien
Snowy Owl --CR 67, east of Galien (Stevens:Michaels) first 12/21
Snowy Owl --I76, mile 130 (Janice & Paul Sweet) first 12/20
++++Sterling Reservoir
Northern Mockingbird (Norm Lewis) first 12/20

Logan/Sedgwick County
++++Jumbo Reservoir
Greater White-fronted Goose (4) (Bill Kaempfer) last 12/22

Logan/Washington Counties
++++Prewitt Reservoir
Eastern Screech-Owl (2) (Stevens:Michaels) last 12/22

Morgan County
++++Jackson Reservoir & area
Long-eared Owl (Stevens:Michaels) 2; last 12/22

Washington County
++++County Road 7
Snowy Owl --east/CR M (Norm Erthal) first 12/21

Yuma County
++++Bonny Reservoir Area
Eastern Screech-Owl (Austin Hess) 3; last 12/22
Purple Finch --below dam (Loch Kilpatrick) first 12/22
Eastern Bluebird (2) --below dam (Robert Beauchamp) last 12/22
Eastern Bluebird (5) --wagon wheel CG (Austin Hess) last 12/22
Eastern Bluebird (14) --CR 5.5 (Walbek) first 12/22
Common Redpoll (16) --CR 5.5 (Glenn Walbek) first 12/22
Greater Prairie-Chicken (9) --CR LL.5 & CR 1 area (Austin Hess) first
Red-bellied Woodpecker --Fosters grove (Erthal) last 12/22
Red-bellied Woodpecker (3) (CR 5.5) (Walbek) last 12/22
Red-bellied Woodpecker --Hale Ponds (Loch Kilpatrick) last 12/21
Eastern Bluebird (5) --CR 4 (Kilpatrick) last 12/21
Harris's Sparrow (4) --CR 5.5 (Walbek) first 12/22
Northern Cardinal (2) --CR 3.5 (Beauchamp) first 12/22
Swamp Sparrow --CR 5 (Walbek) first 12/22
Harris's Sparrow --CR 4 (Kilpatrick) first 12/21
Northern Cardinal --CR LL.5 (Kilpatrick) first 12/21
++++Wray City Park
Yellow-bellied Sapsucker (CoBus group) first 12/20
++++Stalker Pond
Northern Cardinal (CoBus group) first 12/20
++++Wray Fishing Unit
Eastern Bluebird (CoBus group) last 12/20
Northern Mockingbird (CoBus group) last 12/20
Common Yellowthroat (CoBus group) first 12/20
Harris's Sparrow (CoBus group) first 12/20
White-throated Sparrow (CoBus group) first 12/20
++++Sandsage Wildlife Area
Eastern Screech-Owl (CoBus group) last 12/20
Brown Thrasher (CoBus group) last 12/20
Harris's Sparrow (CoBus group) first 12/20
White-throated Sparrow (CoBus group) first 12/20
++++Yuma County Road 45
Greater Prairie-Chicken (2) (CoBus group) last 12/20
--Between Hwy 385 and Lek, 1.7 miles/east/hwy 385
Short-eared Owl --CR 45/CR PP (CoBus group) last 12/20
++++Fourteenth Christmas Count
Additional birds: Northern Cardinals (7), red Fox Sparrow, Eastern
Screech-Owl, Long-eared Owl,
Northern Bobwhite (2), Pine Siskins, Red Crossbills, Barn Owl, Harris's


Chaffee County
++++Sands Lake Wildlife Area
Barrow's Goldeneye (2) (Jack Harlan/Valerie Bourdeau) (first 11/17) 12/21

Delta County
++++Paonia Forest Office
Fox Sparrow (Slate-colored) (Dennis Garrison) first 12/19

Fremont County
++++Arkansas Riverwalk
Western Screech-Owl --Raynolds parking lot (Richard Bunn) last 12/19

La Plata County
++++Durango Fish Hatchery
Pacific Wren --as you pull into hatchery (Ryan Votta) first 12/20
++++Huck Finn Pond & Animas River Trail
Lewis's Woodpecker (Ryan Votta) last 12/20

Mesa County
++++Whitewater Gravel Ponds
Long-tailed Duck (Coen Dexter:Brenda Wright) (first 11/25) last 12/20
Pinyon Jay (15) (Dexter:Wright) first 12/20

Montrose County
++++Old Hwy 90 along Silver Hawk Ranch
Pinyon Jay (27) (Dexter:Wright) (first 10/30) 46; last 12/22
++++Otter Pond
Greater White-fronted Goose (Betty Fenton) first 12/20
Pinyon Jay
(53) --East 5th Avenue (Dexter:Wright) (first 9/15) 34; last 12/19
(26) --Second Park (Dexter:Wright) first 12/19

Ouray County
++++Ridgway State Park
Surf Scoter (Betty Fenton/Aaron Yappert) (first 12/6) last 12/19
(latest: dallas creek inlet, also check dutch charlie bay)
Common Loon (Aaron Yappert) last 12/19

Summit County
++++Blue River Water Treatment Plant
Barrow's Goldeneye (Stevens & all/Chris Brobin) (first 11/19) 15; last

Good Birding!

Directions to birding spots and maps on CoBus website:

Amy Davenport, Secretary, Colorado Birding Society Denver, CO
Contact CoBus/Report Interesting Birds: 303-324-7994
Subscribe to "cobirders" by sending blank email to:
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