Date: 11/18/17 3:54 am
From: Amy Davenport <cobussec...> [cobirders] <cobirders-noreply...>
Subject: [cobirders] Colorado Rare Bird Alert for November 18, 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: 11/17/2017
Adams (Tundra Swan)
Arapahoe (Rusty Blackbird, Bonaparte's Gull)
Boulder (Tennessee Warbler)
Chaffee (Barrow's Goldeneye)
Douglas (Brant, Greater White-fronted Goose)
Larimer (Common Redpoll, Swamp Sparrow, Bonaparte's Gull, Lesser
Black-backed Gull)
Logan (Field Sparrow, Northern Cardinal, Eastern Screech-Owl)
Logan/Sedgwick (Greater White-fronted Goose, White-winged Scoter, Mew Gull,
Iceland Gull, Black-legged Kittiwake)


Adams County
++++Rocky Mountain Arsenal
Tundra Swan --Lower Derby Lake (Bruce Snyder/Gwen Moore) (first 11/12)
last 11/17
Common Loon (Candice Johnson/Jill Boice) first (first 10/31) last 11/14

Arapahoe County
++++South Platte Park
Rusty Blackbird --Bufflehead Lake (Ted Uhlemann) first 11/17
++++Cherry Creek Reservoir
Bonaparte's Gull (Terry Michaels/Cynthia Madsen:David Hill) (first 10/19)
2; last 11/17
Iceland Gull (Diane Roberts) first 11/14
Lesser Black-backed Gull (Diane Roberts) last 11/14
Red-necked Grebe (Stevens/Glenn Walbek) (first 11/3) last 11/11

Boulder County
++++Twin Lakes Open Space
Tennessee Warbler (Leslie S:Christian Nunes) first 11/17
(Later seen to east by Christian Nunes at nearby Red Fox Hills)
++++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

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

Douglas County
++++Twenty-mile Pond at Bar CCC Park
Brant (Cheri Phillips/Sarah Leavesley) (first 11/11) last 11/17
(also check field at northwest corner of Plaza Drive & 20-Mile road; 0.7
miles north of pond)
Greater White-fronted Goose (2) (Tim Ryan/Hill:Roberts:Madsen) (first
11/15) last 11/17
++++Walker Gravel Pit
Greater White-fronted Goose (Hugh Kingery) first 11/16

El Paso County
++++Fountain Creek Regional Park
Winter Wren (David Tonnessen) first 11/16

Jefferson County
++++Standley Lake
Common Loon (Norm Erthal/Steven Snyder) (first 11/9) last 11/16
++++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
++++Dixon Reservoir
Common Redpoll --North end (Nick Komar) first 11/17
+++Running Deer Natural Area
Swamp Sparrow (Joe Mammoser/David Leatherman) (first 11/11) last 11/16
(see directions. also seen on west side of river)
++++Horseshoe Lake
Bonaparte's Gull (4) (Nick Komar/Walter Wehtje) (first 11/5) 65; last
Lesser Black-backed Gull (2) (Wehtjef) last 11/17
++++Lory State Park
Common Redpoll --halfway down Kimmons Trail (Kevin Keirn) first 11/16
++++Estes Park
Harris's Sparrow --Mary's Lake trail (Sherrie Duris) first 11/16
++++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

Pueblo County
++++Pueblo City Park
Yellow-bellied Sapsucker (Mark Yaeger) first 11/17
++++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
++++Union Reservoir
Common Loon (Bill Prather/John Rutenbeck) (first 10/28) last 11/15

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


Logan County
++++Sterling Reservoir and Area
Bonaparte's Gull (16) (Stevens) first 11/16
Barrow's Goldeneye (female) (Stevens) first 11/16
Barn Owl (Stevens:Kosten) last 11/6
Snow Bunting (Stevens:Kosten) last 11/6
++++Tamarack Ranch Wildlife Area
Field Sparrow (Stevens) first 11/17
Northern Cardinal (Stevens) last 11/17
Eastern Screech-Owl (2) (Stevens) last 11/16
++++Red Lion Wildlife Area
Red-bellied Woodpecker --southeast of parking lot (Stevens) first 11/16
++++Duck Creek Wildlife Area
Red-bellied Woodpecker --west of parking lot (Stevens) first 11/16

Logan/Sedgwick Counties
++++Jumbo Reservoir
Greater White-fronted Goose (1+) (Stevens) last 11/17
White-winged Scoter (Wild/Stevens) (first 11/14) last 11/17
Mew Gull (2) (Larson/Stevens) (first 11/15) last 11/17
Iceland Gull (Larson/Stevens) (first 11/15) last 11/17
Black-legged Kittiwake (Cole Wild/Stevens) (first 11/14) last 11/17
Winter Wren (Yappert) first 11/16
Greater Scaup (Larson) first 11/15
Common Loon (12) (Nick Moore/Larson) (first 11/9) 2; last 11/15


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

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

Jackson County
++++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
++++Highline Lake State Park
Tundra Swan (2 adults, 6 imm) (Cary Atwood/Connee Moffat) (first 11/10)
10; last 11/16
++++James Robb Colorado River State Park (Fruita section)
Greater Scaup (Betty Fenton/Denise & Mark Vollmar) (first 11/12) (2
female) last 11/16
Chestnut-sided Warbler (2) --see directions (Mike Henwood/Vollmar) (first
11/11) last 11/16
++++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

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

Montezuma County
++++Narraguinnep Reservoir
Common Loon (Erik Hendrickson) (first 11/11) last 11/16

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

Ouray County
++++Ridgway State Park
Lesser Black-backed Gull (1st winter) (Betty Fenton/Dexter:Wright) (first
11/8) last 11/16
Common Loon (3) (Coen Dexter:Brenda Wright/Betty Fenton) (first 10/31) 1;
last 11/15

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) last 11/16
Surf Scoter (Litteral) first 11/16
Bohemian Waxwing (80) --1/2 miles east of dam (Litteral) first 11/16
Barrow's Goldeneye (2) (Litteral) (first 11/12) 11; last 11/16
Common Loon (Litteral) first 11/16

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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