Date: 11/16/17 11:21 pm
From: Amy Davenport <cobussec...> [cobirders] <cobirders-noreply...>
Subject: [cobirders] Colorado Rare Bird Alert for November 16, 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: 11/15/2017
Adams (Tundra Swan)
Boulder (Black-throated Blue Warbler, Swamp Sparrow, Tundra Swan)
Crowley (Long-tailed Duck, Common Loon)
Douglas (Greater White-fronted Goose)
Jefferson (Greater White-fronted Goose)
Larimer (Bonaparte's Gull, Common Redpoll)
Logan/Sedgwick (Greater White-fronted Goose, White-winged Scoter, Greater
Scaup, Mew Gull, Iceland Gull, Black-legged Kittiwake, Common Loon)
Mesa (Gray-crowned Rosy Finch, Common Loon, Pinyon Jay)
Ouray (Common Loon, Lesser Black-backed Gull)
Park (Surf Scoter, White-winged Scoter, Barrow's Goldeneye, Brown-capped
Rosy Finch)
Pueblo (Bonaparte's Gull, Great Black-backed Gull, Ladder-backed
Woodpecker, Chestnut-sided Warbler)
Weld (Common Loon)


Adams County
++++Rocky Mountain Arsenal
Tundra Swan --Lower Derby Lake (Bruce Snyder/Richard Stevens) (first
11/12) last 11/15
Common Loon (Candice Johnson/Jill Boice) first (first 10/31) last 11/14
++++First Creek Trail
Common Redpoll (Lanning/Richard Stevens) (first 11/10) last 11/13
(Latest: along First Creek at 30 yards west of Buckley Road)

Arapahoe County
++++Cherry Creek Reservoir
Lesser Black-backed Gull (Diane Roberts) last 11/14
Bonaparte's Gull (Terry Michaels/Cynthia Madsen) (first 10/19) 2; last
++++Westlands Park
Greater White-fronted Goose (Jared Del Rosso) first 11/13

Boulder County
++++Skunk Creek
Black-throated Blue Warbler (male) --broadway bridge (Bill Kaempfer/Luke
Pheneger) (first 11/13) last 11/15
Varied Thrush (Topiltzin Martinez/Christy Payne & all) (first 11/12) last
(Latest: behind Goodwill; also check behind Center, halfway between
Broadway & 27th Way)
++++Greenlee Preserve/Waneka Lake
Swamp Sparrow (Ted Floyd) first 11/15
++++Walden Ponds
Tundra Swan (Peter Burke/David Hill:Cynthia Madsen) (first 11/12) last
++++Boulder Reservoir complex
Long-tailed Duck (Christian Nunes/Stevens) (first 11/12) last 11/14
Greater Scaup --Six mile Reservoir (Richard Stevens) first 11/14
Pacific Loon (Dowell/Stevens) (first 11/8) last 11/14
++++Terry Lake, Boulder
Barrow's Goldeneye (Mlodinow) first 11/14
Bonaparte's Gull (33) (David Dowell/Mlodinow) (first 11/2) last 11/14
Iceland Gull (Mlodinow) first 11/14
++++Prince Lake #2
Lesser Black-backed Gull (Stevens) first 11/14
++++Baseline Reservoir Map
Common Loon (Christian Nunes) (first 10/16) last 11/14
+++ Valmont Reservoir Complex
Common Loon (Nunes) last 11/14
Pacific Loon (Richard Trinkner/Loch Kilpatrick) (first 11/10) last 11/13
+++ Tantra Park
Harris's Sparrow --bridgewalk (Melissa Mezger) first 11/13

Denver County
++++Marston Reservoir
Pacific Loon (2) (Gwen Moore) first 11/14

Douglas County
++++Twenty-mile Pond at Bar CCC Park
Greater White-fronted Goose (2) (Tim Ryan) first 11/15
Brant (Cheri Phillips/Cynthia Kristensen) (first 11/11) last 11/13
(also check field at northwest corner of Plaza Drive & 20-Mile road; 0.7
miles north of pond)
++++Salisbury Equestrian Park
Surf Scoter (5) (Paul Turelli) reported 11/12

Jefferson County
++++Clement Park
Greater White-fronted Goose (Soctt Somershoe/Diane Roberts) (first 11/11)
last 11/15
++++Bear Creek Lake Park
Bonaparte's Gull (4) (Steven Snyder/Weston Petty) (first 11/11) 6; last
++++Lake Rhoda, Lakeside Park
Common Loon (Julia Auckland) (first 11/11) last 11/14
++++Belmar Historic Park
Greater White-fronted Goose (Bez Bezuidehout) last 11/14
++++Bowles Reservoir #1
Pacific Loon (Frank Farrell) first 11/13
++++Majestic View Park
Brown Thrasher (Kevin DeBoer/Frank Farrell) (first 11/12) last 11/13
++++Standley Lake
Common Loon (Norm Erthal) (first 11/9) last 11/13

Larimer County
++++Loveland Reservoir
Bonaparte's Gull (Nick Komar) first 11/15
++++Cub Lake trail, Rocky Mountain National Park
Common Redpoll (12) (Inez Whipple) reported 11/15
++++Boyd Lake State Park
Common Loon (2) (James Mccall) first 11/14
++++Grandview Cemetery
Eastern Screech-Owl (James Mccall) last 11/14
++++Spring Canyon Community Park
Eastern Screech-Owl (Biggerstaff) last 11/14
Long-eared Owl (Brad Biggerstaff) (first 11/13) last 11/14
++++Lake Loveland
Iceland Gull (Komar:Wehtje/Christine Sparks) (first 11/4) last 11/13

Pueblo County
++++Pueblo Reservoir
Bonaparte's Gull (Robb Hinds) 5; last 11/15
Great Black-backed Gull (adult) (Brandon Percival/Robb Hinds) (first
11/7) last 11/15
Ladder-backed Woodpecker (Hinds) last 11/15
++++Arkansas River/Pueblo?
Chestnut-sided Warbler (Percival) first 11/15

Weld County
Golden-crowned Sparrow (Bill Hutchinson) first 11/12
++++Windsor Lake
Bonaparte's Gull (Gene Rutherford) first 11/11
Lesser Black-backed Gull (Rutherford) first 11/11
++++Union Reservoir
Pacific Loon (Mlodinow) (first 11/9) last 11/11
Bonaparte's Gull (3) (Mlodinow:Pheneger/Gene Rutherford) (first 10/17)
17; last 11/11
++++Windsor Reservoir
Lesser Black-backed Gull (Gene Rutherford) first 11/11

Weld County
++++Union Reservoir
Common Loon (Bill Prather/John Rutenbeck) (first 10/28) last 11/15
Pacific Loon (Mlodinow/Michael Britten) (first 11/9) last 11/14
Bonaparte's Gull (3) (Mlodinow:Pheneger/Mlodinow) (first 10/17) 79; last
Common Redpoll (2) --CR 5/north/CR 26 (Bob & Nancy Bierling) first 11/13
++++Weld County Road 37/CR 46 Ponds
Greater White-fronted Goose (6) (Gene Rutherford) first 11/12

Southeastern Colorado

Crowley County
++++Lake Henry
Long-tailed Duck (David Chaffin) first 11/15
Common Loon (David Chaffin) first 11/15

Otero County
++++Lake Holbrook
Red-necked Grebe (Setta Moss/Stanley Oswald) (first 11/3) last 11/14
Great Egret (late) (Oswald) first 11/14
Bonaparte's Gull (7) (David Chaffin) first 11/13


Logan/Sedgwick Counties
++++Jumbo Reservoir
Greater White-fronted Goose (1+) (Larson) last 11/15
White-winged Scoter (Wild/Larson) (first 11/14) last 11/15
Greater Scaup (Larson) first 11/15
Mew Gull (2) (Larson) first 11/15
Iceland Gull (Larson) first 11/15
Black-legged Kittiwake (Cole Wild/Steve Larson) (first 11/14) last 11/15
Common Loon (12) (Nick Moore/Larson) (first 11/9) 2; last 11/15


Clear Creek County
++++Guanella Pass
American Three-toed Woodpecker --Campgrounds (Sam Williams) last 11/13
White-tailed Ptarmigan (6) (Sam Williams & all) last 2; last 11/13

Custer County
++++DeWeese Reservoir
White-winged Scoter (3 female or juv) (Rich Miller/Percival) (first
11/13) last 11/14
Surf Scoter (Rich Miller/Percival) (first 11/13) last 11/14

Delta County
++++Confluence Park
Common Loon (Rick Harner) first 11/13

Jackson County
++++Walden Reservoir and area
Surf Scoter (Tom Litteral/Stevens:Michaels) (first 11/11) last 11/12
++++Colorado State Forest
American Three toed Woodpecker (1) --Ranger Lakes (Stevens:Michaels) last
Boreal Owl
(2) --Ranger Lakes area (Stevens:Michaels) last 11/12
(1) --Ruby Jewell Road (Washburn:Simmons/Stevens:Michaels) (first 5/8)
last 11/12
(1) --south/Crags Campgrounds (Stevens:Michales) last 11/10

Mesa County
++++Grand Mesa North
Gray-crowned Rosy Finch (2) --Powherhorn Ski Area (Mike Henwood) first
++++Jerry Creek Reservoirs
Common Loon (Mike Henwood) first 11/15
Pinyon Jay (20) (Henwood & all) first 11/15
++++Highline Lake State Park
Tundra Swan (2 adults, 6 imm) (Cary Atwood/Carol Ortnezio) (first 11/10)
10; last 11/14
Common Loon (2) --Mack Mesa Lake (Lee Stigen/Ortenzio) (first 11/3) 2;
last 11/14
Black Phoebe (Ronda Woodward) first 11/12
++++James Robb Colorado River State Park
Chestnut-sided Warbler (2) --see directions (Mike Henwood) (first 11/11)
last 11/13
White-winged Scoter (Denise & Mark Vollmar/JoAnn Riggle) (first 11/11)
last 11/13
Common Loon (Diane Trappett) first 11/13

Moffat County
++++Highway 13/Craig Station/Trapper Mine turnoff
Tundra Swan (2 adult, 4 juv) (Forrest Luke) first 11/14

Montezuma County
++++Centennial Park
Greater White-fronted Goose (Jim Beatty) first 11/14

Montrose County
++++Nucla Sewer Ponds
Bonaparte's Gull (Coen Dexter:Brenda Wright) first 11/14

Ouray County
++++Ridgway State Park
Common Loon (3) (Coen Dexter:Brenda Wright/Betty Fenton) (first 10/31) 1;
last 11/15
Lesser Black-backed Gull (1st winter) (Betty Fenton) (first 11/8) last

Park County
NOTE: Due to close proximity of the three reservoirs, same birds may move
++++Eleven Mile Reservoir
Surf Scoter (24) (Joey Kellner & all/Gwen Moore) (first 10/29) 3; last
White-winged Scoter (4) (Joey Kellner & all/Gwen Moore) (first 10/29) 2;
last 11/15
Barrow's Goldeneye (McCloy/Gwen Moore) (first 11/11) last 11/15
Brown-capped Rosy Finch (12) (Gwen Moore) last 11/15

Routt County
++++Stagecoach Recreational Area
White-winged Scoter (2) (Tom Litteral) first 11/12
Barrow's Goldeneye (2) (Litteral) first 11/12
Greater Scaup (Tresa Moulton) first 11/12

San Miguel County
++++Miramonte Reservoir
Surf Scoter (3) (Dexter:Wright/George Steele) (first 10/22) 2; last 11/13
White-winged Scoter (5) (Dexter:Wright/Steele) (first 10/23) 2; last 11/13

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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