Date: 11/26/17 3:32 am
From: Amy Davenport <cobussec...> [cobirders] <cobirders-noreply...>
Subject: [cobirders] Colorado Rare Bird Alert for November 26, 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: 11/25/2017
Adams (Blue-gray Gnatcatcher)
Boulder (Swamp Sparrow, Harris's Sparrow, Greater Scaup)
Broomfield (Common Yellowthroat)
Delta (Great Egret)
Douglas (Brant)
El Paso (Greater White-fronted Goose)
El Paso/Pueblo (Ladder-backed Woodpecker)
Fremont (Western Screech-Owl)
Jefferson (Common Loon)
Jefferson/Douglas (Greater White-fronted Goose)
Larimer (Swamp Sparrow, Harris's Sparrow, Greater White-fronted Goose)
Logan/Washington (Bonaparte's Gull, Lesser Black-backed Gull, Greater
White-fronted Goose, Red-bellied Woodpecker)
Mesa (Long-tailed Duck, Common Loon, Black Phoebe, Red-naped Sapsucker,
Western Tanager)
Morgan (Snowy Owl, White-throated Sparrow, Long-eared Owl, Eastern
Park (Tundra Swan, Red-necked Grebe, Gray-crowned Rosy Finch, Lesser
Black-backed Gull)
Phillips (Greater White-fronted Goose)
Pueblo (Chestnut-sided Warbler, Barrow's Goldeneye, Carolina Wren,
Yellow-bellied Sapsucker, Chipping Sparrow, Red-necked Grebe, Bonaparte's
Gull, Mew Gull, Lesser Black-backed Gull, Great Black-backed Gull, Common
Loon, Iceland Gull)
Routt (White-winged Scoter)
Weld (Greater Scaup, Pacific Loon, Common Loon, Bonaparte's Gull)


Adams County
++++South Platte Birding Area
Blue-gray Gnatcatcher (Brian Tavernia) first 11/25
Greater Scaup (Cynthia Madsen) reported 11/23
Barrow's Goldeneye --south/88th avenue (Dale Pate/John Rutenbeck:Carl
Bendorf) (first 11/20) last 11/21
++++Rocky Mountain Arsenal
Common Loon --Lake Ladora (Candice Johnson/Warren) (first 10/31) last
++++Mayham Lake
Bonaparte's Gull (3) (Shannon Koen) first 11/24
++++First Creek Trail
Eastern Bluebird (5) (John Breitsch) first 11/23

Arapahoe County
++++Clement Park Map
Greater White-fronted Goose (Soctt Somershoe/Christopher Warneke) (first
11/11) last 11/24
++++Aurora Reservoir Area Map
Common Loon (Washburn/Dave King) (first 10/15) 2; last 11/24
Black Scoter (Michaels/Dave King) (first 11/22) last 11/24
Surf Scoter (Dave King:Jacob Washburn/Michaels) (first 11/10) again 11/22
White-winged Scoter (Washburn/Michaels) (first 11/10) again 11/22
Bonaparte's Gull (Stevens:Kosten/Michaels) (first 10/28) last 11/22
Lesser Black-backed Gull (Dave King/Michaels) (first 11/5) last 11/22
++++Cherry Creek Reservoir
Iceland Gull (2) (Ben Sampson) first 11/24

Arapahoe/Jefferson Counties
++++South Platte Park Reservoir & Area
Surf Scoter (2) --southwest corner, Jefferson Cty (Bart Deferme/Dale
Pate) (first 10/25) last 11/22

Boulder County
++++Jim Hamm Park
Swamp Sparrow (Cheri Phillips) first 11/25
Winter Wren (Ted Floyd) reported 11/24
++++Walden Ponds
Harris's Sparrow (Tracy Rackauskas/Tim Mitzen) (first 11/24) 2; last 11/25
(near the barbed-wire fence on the west side of the "Ricky Weiser
++++Pella Crossing Area
Greater Scaup (3) (Carl Starace) first 11/25
++++McIntosh Lake
Lesser Black-backed Gull (Ted Floyd & all) first 11/24
++++Boulder Reservoir complex
Common Redpoll (Earl Johnson) first 11/23
++++Golden Ponds
Swamp Sparrow (Luke Pheneger/David Dowell) (first 11/11) last 11/23
++++Twin Lakes Open Space
Hammond's Flycatcher (Jeff Parks/Ginny Bergstrom) (first 11/19) last
++++Old St. Vrain Road
Winter Wren (Carl Starace) first 11/22

Broomfield County
++++Brunner Reservoir
Common Yellowthroat (David Ely) (first 11/3) last 11/25

Denver County
++++Marston Reservoir
Bonaparte's Gull (3) (Mackenzie Goldthwait) first 11/23

Douglas County
++++Twenty-mile Pond at Bar CCC Park
Brant (Cheri Phillips/Matthew Wistrand:Phil Lyon) (first 11/11) last
(also check field at northwest corner of Plaza Drive & 20-Mile road; 0.7
miles north of pond)
Greater Scaup (6) (Mark Amershek:Nancy Davis) first 11/22

El Paso County
++++Prospect Lake at Memorial Park, Colorado Springs
Greater White-fronted Goose (Steve Getty) first 11/25
++++Cheyenne Mountain Park
American Three-toed Woodpecker (Jon Wise) first 11/22

El Paso/Pueblo Counties
++++Chico Basin Ranch (fee area)
Ladder-backed Woodpecker (2) (Diane Roberts) last 11/25
(All above: El Paso County
Ladder-backed Woodpecker --Headquarters (Roberts) last 11/25
(All above: Pueblo County)

Jefferson County
++++Standley Lake
Common Loon (Gabriel Wiltse) last 11/25
++++Wheat Ridge Greenbelt
Black Scoter (Mark Chavez/M.OB.) (first 11/21) last 11/23
White-throated Sparrow (Timo Mitzen:Lindsay Purifoy) first 11/23
++++Hutchison Park/Green Mountain
Common Redpoll (Timo Mitzen:Lindsay Purifoy) first 11/23

Jefferson/Douglas County
++++Chatfield Reservoir area
Greater White-fronted Goose (3) (Crystal Wilson) first 11/25
Bonaparte's Gull (9) (Scott Hollis) last 11/22

Larimer County
++++CSU Environmental Learning Center
Black-and-white Warbler --near parking lot (Damion Strommer) first 11/25
++++North Shields Pond Natural Area
Swamp Sparrow (Doug Swartz) first 11/25
++++Arapahoe Bend Natural Area (Rigden Reservoir)
Harris's Sparrow (Tim Mitzen) first 11/25
Swamp Sparrow (Mitzen) first 11/25
++++Equalizer Lake
Greater White-fronted Goose (Robert Beauchamp/Nick Komar) (first 11/22)
4; last 11/25
++++Horseshoe Lake
Bonaparte's Gull (4) (Nick Komar) (first 11/5) 2; last 11/24
Lesser Black-backed Gull (up to 7) (Komar) last 11/24
++++Rawhide Reservoir
Tundra Swan (Fawn Simonds) first 11/23
++++Douglas Reservoir
Common Loon (Nick Komar/John Shenot) (first 11/11) last 11/23
++++North Poudre Reservoir #3
Greater White-fronted Goose (John Shenot) first 11/23
++++Rocky Mountain National Park
Bohemian Waxwing (22) --Bear Lake (Sue Riffe) first 11/21

Pueblo County
++++Pueblo City Park
Chestnut-sided Warbler (Paul Hurtado) first 11/25
Barrow's Goldeneye (2) (Hurtado) first 11/25
(All above: Arkansas River trail: Reservoir Road to train bridge)
Carolina Wren (Percival/Van Truan) (first 11/15) last 11/25
(Arkansas River Trail--east of Pueblo Blvd)
Yellow-bellied Sapsucker (Mark Yaeger/Paul Hurtado) (first 11/17) last
Chipping Sparrow (Mlodinow) first 11/25
Yellow-throated Warbler --northeast corner (Mark Yaeger) first 11/19
++++Pueblo Reservoir
Red-necked Grebe (2) --below dam (Ira Sanders) first 11/25
Bonaparte's Gull (197) (Steve Mlodinow) last 11/25
Mew Gull (Mlodinow) reported 11/25
Lesser Black-backed Gull (3) (Mlodinow) last 11/25
Great Black-backed Gull (adult) (Percival/Mlodinow) (first 11/7) last
Common Loon (up to 30) (Sanders) 3; last 11/25
Iceland Gull (Percival/Sanders) (first 11/12) last 11/25
++++Lake Beckwith
White-winged Scoter (Dave Silverman) (first 11/21) last 11/24

Weld County
++++Luna Reservoir
Greater Scaup (9) (Mlodinow/Joe Mammoser) (first 11/22) last 11/25
Tundra Swan (2) (Steve Mlodinow) first 11/22
++++Union Reservoir & area
Pacific Loon (Mlodinow/Matthew Wistrand) (first 11/9) last 11/25
Common Loon (Bill Prather/Wistrand) (first 10/28) 2; last 11/25
Bonaparte's Gull (3) (Mlodinow:Pheneger/Wistrand) (first 10/17) 18; last


Bent County
++++John Martin Reservoir
Glaucous Gull (1st cycle) (Duane Nelson) first 11/24


Logan County
++++Tamarack Ranch Wildlife Area
Greater Prairie-Chicken (5) --CR 385 (Bill Kaempfer) first 11/24

Logan/Sedgwick Counties
++++Jumbo Reservoir
Greater White-fronted Goose (1) (Bill Kaempfer) last 11/24

Logan/Washington Counties
++++Prewitt Reservoir area
Bonaparte's Gull (Stevens/Washburn:Jamie Thompson) (first 11/18) 1; last
Lesser Black-backed Gull (Washburn:Thompson) first 11/25
Greater White-fronted Goose (Washburn:Thompson) last 11/25
Red-bellied Woodpecker (Washburn:Thompson) last 11/25

Morgan County
++++Riverside Park; Fort Morgan
Snowy Owl (David Dowell) first 11/25
(I76, east of exit 80, south of Park)
++++Jackson Reservoir & area
White-throated Sparrow (2) (Mlodinow/Washburn:Jamie Thompson) (first
9/30) last 11/25
(south of Pelican campsite 89)
Long-eared Owl (Washburn:Thompson) last 11/25
Eastern Screech-Owl (Washburn:Thompson) last 11/25

Phillips County
++++Haxtun Sewage Ponds
Greater White-fronted Goose (7) (Riley Morris/Bill Kaempfer) (first 11/4)
20; last 11/25


Archuleta County
++++Fosset Gulch Road
Northern Mockingbird (late) (James Beatty) first 11/24

Clear Creek County
++++Loveland Pass
White-tailed Ptarmigan (1) (Stevens & all) last 11/19
(hill north of first pullover south of Pass and west of Hwy 9)

Delta County
++++G50 Road
Great Egret --G50 & CR 1250 (Glenn Pearson/Dennis Garrison) first (first
11/10) last 11/25

Eagle County
++++Frying Pan River, outside of Basalt
Barrow's Goldeneye (7 male, 8 female) --pond by Cap K (Louise
Glaser/Zerbi) (first 11/19) 8; last 11/21

Eagle/Pitkin Counties
++++Ruedi Reservoir
Barrow's Goldeneye (male) (Filby/Vic Zerbi) (first 10/31) 7; last 11/21
(1, Pitkin County; 6, Eagle County)

Fremont County
++++Arkansas Riverwalk
Western Screech-Owl --Raynolds parking lot (Kevin & Jerry DeBoer) last
++++Temple Canyon Park
Northern Pygmy-Owl (Kevin & Jerry DeBoer) first 11/24
++++Brush Hollow Wildlife Area
Pinyon Jay (42) (Kevin & Jerry DeBoer) last 11/23
++++Siloam Road and CR 110 area
Harris's Sparrow (DeBoer) first 11/23
Lincoln's Sparrow (7) (DeBoer) first 11/23

Grand County
++++Windy Gap Reservoir
Barrow's Goldeneye (6) (Stevens:Michaels/Riley & Heather Morris) (first
10/7) last 11/24

Jackson County
++++Colorado State Forest
American Three toed Woodpecker
(1) --Ranger Lakes (Stevens:Kosten) last 11/23
(m) --Across Hwy 14/north of Colorado State Forest Visitor's Center
(Stevens:Kosten) last 11/22
Boreal Owl
(1) --Ruby Jewell Road (Washburn:Simmons/Stevens:Kosten) (first 5/8) last
(2) --Ranger Lakes area (Stevens:Michaels) last 11/12

Mesa County
++++Whitewater Gravel Ponds
Long-tailed Duck (Coen Dexter:Brenda Wright) first 11/25
Common Loon (Dexter:Wright) first 11/25
Black Phoebe (Dexter:Wright) first 11/25
Red-naped Sapsucker (late) (Dexter:Wright) first 11/25
Western Tanager (late) (Coen Dexter:Brenda Wright) (first 11/23) last

Ouray County
++++Ridgway State Park
Common Loon (3) (Coen Dexter:Brenda Wright/Betty Fenton) (first 10/31) 1;
last 11/23

Park County
++++Antero Reservoir
Tundra Swan (3) (Somershoe:Shoup/Ryan Bushong) (first 11/9) 25; last 11/25
Red-necked Grebe (3) (Bushong) reported 11/25
++++Eleven Mile Reservoir
Gray-crowned Rosy Finch (125) (Jack & Ryan Bushong) first 11/25
++++Spinney Mountain
Lesser Black-backed Gull (Jack & Ryan Bushong) first 11/25
Gray-crowned Rosy Finches (15) (Norm Lewis/Barry Southard) (first 11/22)
1; last 11/23
Brown-capped Rosy Finch (3) (Norm Lewis) first 11/22

Routt County
++++Stagecoach Recreational Area
White-winged Scoter (2) (Tom Litteral/Katie Weeks) (first 11/12) last
Surf Scoter (Litteral/Riley & Heather Morris) (first 11/16) last 11/24
Barrow's Goldeneye (2) (Litteral/Morris) (first 11/12) 4; last 11/124

San Miguel County
++++Miramonte Reservoir
Barrow's Goldeneye (2) (Hynes & all/George Steele) (first 11/18) last
Common Loon (Eric Hynes/George Steele) (first 10/22) 1; last 11/21
Sabine's Gull (1st winter) (Hynes & all/George Steele) (photographed
11/18) last 11/21

Summit County
++++Blue River Water Treatment Plant
Barrow's Goldeneye (Stevens & all) first 11/19
++++Dillon Reservoir
Barrow's Goldeneye (2+) (Tom Wilberding) first 11/19

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
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