Date: 11/29/17 3:17 am
From: Amy Davenport <cobussec...> [cobirders] <cobirders-noreply...>
Subject: [cobirders] Colorado Rare Bird Alert for November 29, 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: 11/28/2017
Adams (Barrow's Goldeneye, Pacific Loon)
Arapahoe (Greater White-fronted Goose)
Baca (Pinyon Jay, Eastern Bluebird, Winter Wren, Harris's Sparrow)
Boulder (Harris's Sparrow)
Douglas (Brant, Greater Scaup)
Jefferson (White-throated Sparrow)
Las Animas (Winter Wren)
Larimer (Greater Scaup, Common Loon, Lesser Black-backed Gull, Pacific Loon)
Mesa (White-winged Scoter, Long-tailed Duck, Common Loon)
Morgan (Swamp Sparrow, White-throated Sparrow, Long-eared Owl, Eastern
Otero (Common Redpoll)
Routt (White-winged Scoter, Surf Scoter, Barrow's Goldeneye)
Weld (Common Redpoll, Iceland Gull, Lesser Black-backed Gull, Great
Black-backed Gull, Varied Thrush, Greater White-fronted Goose, Snow
Bunting, Sharp-tailed Grouse)


Adams County
++++South Platte Birding Area
Barrow's Goldeneye --south/88th avenue (Dale Pate/Norm Lewis) (first
11/20) last 11/28
Pacific Loon --89th Avenue Pond (Chuck Aid) first 11/28
++++Rocky Mountain Arsenal
Greater Scaup (2) (Michaels/Candice Johnson) (first 11/18) last 11/27

Arapahoe County
++++Clement Park
Greater White-fronted Goose (Soctt Somershoe/Phil Lyon) (first 11/11)
last 11/28
Great Egret (Bruce Snyder) first 11/26
++++Ketring Park and Lake
Swamp Sparrow --small marsh near Lake (Jared Del Rosso) (first 11/11)
again 11/26
++++South Platte Park
Greater Scaup (2) --C470 area (Christopher Warneke/Ben Sampson) (first
11/24) last 11/26

Boulder County
++++Pella Crossing Area
Harris's Sparrow (Carl Starace) first 11/28
++++Twin Lakes Open Space
Hammond's Flycatcher (Jeff Parks/Leslie S) (first 11/19) last 11/26
++++Boulder Reservoir complex
Swamp Sparrow (Pheneger) first 11/26
++++Walden Ponds
Harris's Sparrow (Tracy Rackauskas/Candice Johnson) (first 11/24) 2; last
(near the barbed-wire fence on the west side of the "Ricky Weiser
++++Dodd Reservoir
Greater White-fronted Goose (Luke Pheneger) (first 11/4) last 11/26

Broomfield County
++++Plaster Reservoir
Common Yellowthroat (Matt Hofedtz) last 11/26

Douglas County
++++Twenty-mile Pond at Bar CCC Park
Brant (Cheri Phillips/Tim Ryan) (first 11/11) last 11/28
(also check field at northwest corner of Plaza Drive & 20-Mile road; 0.7
miles north of pond)
++++Salisbury Equestrian Park
Greater Scaup (2) (Nancy Davis/Brian Johnson) (first 11/20) 3; last 11/28
++++Walker Gravel Pit
Greater Scaup (2) (Cheri Phillips/Meg Reck:Diane Roberts) (first 11/11)
3; last 11/28

Jefferson County
++++Robert A. Easton Regional Park
White-throated Sparrow (Frank Farrell) last 11/28
++++Belmar Historic Park
Greater White-fronted Goose (2) (Frank Farrell) last 11/27

Jefferson/Douglas County
++++Chatfield Reservoir area
Greater White-fronted Goose (3) (Crystal Wilson) first 11/25

Larimer County
++++College Lake
Greater Scaup (Nick Komar) (first 11/27) last 11/28
++++Timnath Reservoir
Common Loon (Bob Righter/Nick Komar) (first 11/3) last 11/28
++++Horseshoe Lake
Lesser Black-backed Gull (up to 7) (Michael Britten) 7; last 11/28
Bonaparte's Gull (4) (Nick Komar) (first 11/5) 2; last 11/24
Glaucous-winged Gull (Nick Komar:Walter Wehtje) first (first 11/17) last
++++Wellington Wildlife Area, Cobb Lake
Pacific Loon (Mlodinow) first 11/28
Common Loon (Nick Komar/Mlodinow) (first 11/27) 3; last 11/28
Glaucous Gull (1st cycle) (Nick Komar) reported 11/26
Possible Slaty-backed Gull (Komar) (first 11/25) last 11/26
(Best viewed from CR 56; best times: 4:00-4:30 pm)
++++Lake Loveland
Iceland Gull (Michael Britten) first 11/27
Lesser Black-backed Gull (7) (Komar/Michael Britten) 3; last 11/27
++++CSU Environmental Learning Center to Cattail Chorus
Black-and-white Warbler --near parking lot (Damion Strommer/Walter
Wehtje) (first 11/25) last 11/26
++++Rawhide Reservoir
Pacific Loon (Nick Komar:Austin Hess) first 11/26
Lesser Black-backed Gull (Komar:Hess) first 11/26
++++Stearns Lake
Greater White-fronted Goose (Randall Siebert) first 11/26
Swamp Sparrow (Randall Siebert) first 11/26

Pueblo County
++++Pueblo City Park
Carolina Wren (Percival/John Drummond) (first 11/15) last 11/27
(Arkansas River Trail--east of Pueblo Blvd)
Yellow-throated Warbler --northeast corner (Mark Yaeger/Drummond) (first
11/19) last 11/27
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)
Yellow-bellied Sapsucker (Mark Yaeger/Paul Hurtado) (first 11/17) last
Chipping Sparrow (Mlodinow) first 11/25
++++Pueblo Reservoir
Bonaparte's Gull (197) (John Drummond) 4; last 11/27
Lesser Black-backed Gull (Drummond) 2; last 11/27
Great Black-backed Gull (adult) (Percival/Drummond) (first 11/7) last
Red-necked Grebe (2) --below dam (Ira Sanders) first 11/25
Mew Gull (Mlodinow) reported 11/25
Common Loon (up to 30) (Sanders) 3; last 11/25
Iceland Gull (Percival/Sanders) (first 11/12) last 11/25

Weld County
++++Crow Valley Campground
Common Redpoll (35) (David Leatherman) first 11/28
(group picnic area to fenceline to Work Center)
++++Black Hollow Reservoir
Iceland Gull (2) (Mlodinow) first 11/28
Lesser Black-backed Gull (3) (Mlodinow) first 11/28
Great Black-backed Gull (Mlodinow) reported 11/28
++++Greeley Gravel Ponds at 35th Avenue
Varied Thrush (Shawn Mason) first 11/28
Greater White-fronted Goose (Gary Lefko) first 11/27
++++Adams and Bunker Reservoirs
Greater White-fronted Goose (Steve Mlodinow) first 11/28
Snow Bunting (3) (Steve Mlodinow) first 11/28
++++County Road 111 (btw CR 124-136)
Sharp-tailed Grouse (6) (Mlodinow) last 11/28
Gray-crowned Rosy Finch (5) (Mlodinow) reported 11/28
Longspurs (3 species) (Mlodinow) first 11/28
++++Newell Lake
Greater White-fronted Goose (2) (Gary Lefko) first 11/27
++++Union Reservoir & area
Pacific Loon (Mlodinow/Mark Amershek) (first 11/9) last 11/26
Common Loon (Bill Prather/Amershek) (first 10/28) 2; last 11/26
Bonaparte's Gull (3) (Mlodinow:Pheneger/Amershek) (first 10/17) 19; last


Baca County
++++County Road C
Pinyon Jay (120) --btw Oklahoma Line & CR 8 (Kathy Mihm-Dunning) first
++++Cottonwood Canyon
Eastern Bluebird (3) --see map (Mihm-Dunning) first 11/28
++++Two Buttes Reservoir & area
Winter Wren (4) (David Dowell:Tim Smart/Mihm-Dunning) (first 11/26) 1;
last 11/28
Harris's Sparrow (4) (David Dowell:Tim Smart/Mihm-Dunning) (first 11/26)
last 11/28

Bent County
++++Blue Lake
Black-bellied Plover (Brooke:Teuton) first 11/26
Common Loon (1) (Leatherman:Thompson/Dan Brooke) (first 11/2) last 11/26
Bonaparte's Gull (24) (Brooke) first 11/26

Crowley County
++++Lake Henry
Long-tailed Duck (female) (David Chaffin/Dan Brooke) (first 11/15) last
Common Loon (David Chaffin/Brooke) (first 11/15) last 11/26
Bonaparte's Gull (12) (Brooke) first 11/26

Las Animas County
++++Cottonwood Canyon
Winter Wren (Mihm-Dunning) last 11/28

Otero County
++++Vogel Canyon
Common Redpoll (Kathy Mihm-Dunning) first 11/25


Logan County
++++Tamarack Ranch Wildlife Area
Greater Prairie-Chicken (5) --CR 385 (Bill Kaempfer) first 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
++++Jackson Reservoir & area
Swamp Sparrow (Stevens:Michaels) first 11/28
White-throated Sparrow (2) (Mlodinow/Stevens:Michaels) (first 9/30) last
Long-eared Owl (Stevens:Michaels) 2; last 11/28
Eastern Screech-Owl (Stevens:Michaels) last 11/28
++++Fort Morgan Ponds
Eastern Bluebird (3) (Riley Morris/Stevens:Michaels) (first 11/26) last
++++Riverside Park; Fort Morgan
Greater White-fronted Goose (Riley Morris/Stevens:Michaels) (first 11/19)
last 11/27
Snowy Owl (David Dowell) first 11/25
(I76, east of exit 80, south of Park)


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/Rick Harner) first (first
11/10) last 11/27

Fremont County
++++Arkansas Riverwalk
Western Screech-Owl --Raynolds parking lot (Kevin & Jerry DeBoer) last

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

Jackson County
++++County Road 26b
Greater Sage-Grouse (1) --CR 26b (Stevens:Kosten) last 11/26
++++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
++++James Robb Colorado River State Park
White-winged Scoter (Denise & Mark Vollmar/Henwood:Cunningham) (first
11/11) last 11/28
++++Whitewater Gravel Ponds
Long-tailed Duck (Coen Dexter:Brenda Wright/McGinley:Stegall) (first
11/25) last 11/28
Common Loon (Dexter:Wright/Woodward:Stegall) (first 11/25) last 11/28
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

Montrose County
++++East 5th Avenue, Nucla
Pinyon Jay (53) (Dexter:Wright) (first 9/15) 25; last 11/27

Park County
++++Antero Reservoir
Tundra Swan (3) (Somershoe:Shoup/Ketcham) (first 11/9) 21; last 11/27
Red-necked Grebe (3) (Bushong/Ketcham) (first 11/25) last 11/27

Routt County
++++Stagecoach Recreational Area
Surf Scoter (Litteral/Nick Korte) (first 11/16) last 11/28
White-winged Scoter (2) (Tom Litteral/Korte) (first 11/12) last 11/28
Barrow's Goldeneye (2) (Litteral/Korte) (first 11/12) 20; last 11/28

San Miguel County
++++Mountain Village
White-throated Sparrow (Eric Hynes) first 11/26
(big billies trail toward country club drive)

Summit County
++++Dillon Reservoir
Barrow's Goldeneye (2+) (Tom Wilberding/Bushong) (first 11/19) last 11/26
++++Blue River Water Treatment Plant
Barrow's Goldeneye (Stevens & all) 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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