Date: 11/19/17 3:32 am
From: Amy Davenport <cobussec...> [cobirders] <cobirders-noreply...>
Subject: [cobirders] Colorado Rare Bird Alert for November 19, 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: 11/18/2017
Adams (Tundra Swan, Greater Scaup, Common Loon)
Arapahoe (Bonaparte's Gull)
Arapahoe/Jefferson (Surf Scoter)
Boulder (Winter Wren, Nashville Warbler, Swamp Sparrow, Harris's Sparrow,
Common Loon, Pacific Loon, Bonaparte's Gull, Greater White-fronted Goose)
Chaffee (Pinyon Jay)
Denver (Swamp Sparrow)
Douglas (Brant)
El Paso (Curve-billed Thrasher)
El Paso/Pueblo (Common Redpoll, Chestnut-collared Longspur, Curve-billed
Larimer (Glaucous-winged Gull, Lesser Black-backed Gull, Greater Scaup,
Rusty Blackbird)
Logan (Common Redpoll, Greater White-fronted Goose)
Logan/Sedgwick (Greater White-fronted Goose, Black-legged Kittiwake,
Iceland Gull, Common Loon)
Logan/Washington (Greater White-fronted Goose, Bonaparte's Gull, Iceland
Mesa (Tundra Swan, Common Loon, Black Phoebe)
Morgan (Harris's Sparrow, White-throated Sparrow, Long-eared Owl)
Park (Tundra Swan, Surf Scoter, White-winged Scoter, Pacific Loon, Snow
San Miguel (Surf Scoter, White-winged Scoter, Barrow's Goldeneye, Sabine's
Gull, Common Loon)
Weld (Pacific Loon, Common Loon, Bonaparte's Gull, Lesser Black-backed
Gull, Greater White-fronted Goose)


Adams County
++++Rocky Mountain Arsenal
Tundra Swan --Lower Derby Lake (Bruce Snyder/Terry Michaels) (first
11/12) last 11/18
Greater Scaup (2) (Michaels) first 11/18
Common Loon --Lake Ladora (Candice Johnson/Michaels) (first 10/31) last

Arapahoe County
++++Cherry Creek Reservoir
Bonaparte's Gull (Terry Michaels) (first 10/19) 12; last 11/18
++++South Platte Park
Rusty Blackbird --Bufflehead Lake (Ted Uhlemann) first 11/17

Boulder County
++++Sombrero Marsh
Winter Wren (Peter Burke) first 11/18
++++Twin Lakes Open Space
Nashville Warbler (Todd Deininger:Aaron Yappert) first 11/18
Tennessee Warbler (Leslie S:Christian Nunes) first 11/17
(Later seen by Christian Nunes east at nearby Red Fox Hills Park)
++++Golden Ponds
Swamp Sparrow (Luke Pheneger) (first 11/11) last 11/18
++++Rogers Grove Park at Boulder County Fairgrounds
Harris's Sparrow (Luke Pheneger) first 11/18
++++Valmont Reservoir Complex
Common Loon (Peter Burke) last 11/18
Pacific Loon (Richard Trinkner/Jeff Parks) (first 11/10) last 11/18
Bonaparte's Gull (2) (Burke) first 11/18
++++Dodd Reservoir
Greater White-fronted Goose (Luke Pheneger/Christian Nunes) (first 11/4)
last 11/18
++++Panama Reservoir #1
Pacific Loon (Ted Floyd) first 11/18
(Observed from north shore at south end of 115th Street)
++++Boulder Reservoir complex
Bonaparte's Gull (2) (Peter Gent/Christian Nunes) (first 11/11) 6; last

Denver County
++++Overland Pond Park
Swamp Sparrow (Jeff Dawson) first 11/18
++++Marston Reservoir
Lesser Black-backed Gull (Kevin DeBoer) first 11/18

Douglas County
++++Salisbury Equestrian Park
Brant --northeast of ball fields (Terry Michaels) first 11/18
NOTE: Parker Regional Park no longer exists, county officials state the
park is now split:
McCabe Meadows Park (off Parker Rd) & Salisbury Equestrian Park (off 20
mile rd)
++++Twenty-mile Pond at Bar CCC Park
Brant --same goose as above (Cheri Phillips/James McCall) (first 11/11)
last 11/18
(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
++++Hanover Road and area
Curve-billed Thrasher (3) (David Tonnessen) last 11/18
++++Midway Landfill
Chestnut-collared Longspur (2) (Tonnessen) first 11/18
Chihuahuan Raven (12) (Tonnessen) reported 11/18
++++Fountain Creek Regional Park
Winter Wren (David Tonnessen) first 11/16

El Paso/Pueblo Counties
++++Chico Basin Ranch (fee area)
Common Redpoll (David Tonnessen) first 11/18
Chestnut-collared Longspur (flyover) (Tonnessen) first 11/18
(All above: El Paso County
Curve-billed Thrasher --headquarters (Tonnessen) last 11/18
(All above: Pueblo County)

Jefferson County
++++South Platte Park Reservoir
Surf Scoter (2) (Bart Deferme/Ben Sampson) (first 10/25) last 11/18
++++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
++++Horseshoe Lake
Glaucous-winged Gull (Nick Komar:Walter Wehtje) first (first 11/17) last
Lesser Black-backed Gull (2) (Komar) last 11/18
Bonaparte's Gull (4) (Nick Komar/Walter Wehtje) (first 11/5) 65; last
++++Lake Loveland
Lesser Black-backed Gull (7) (Komar/Wehtje) 5; last 11/18
++++Fossil Creek Reservoir
Greater Scaup (Megan Miller) first 11/18
++++CSU Environmental Learning Center to Cattail Chorus
Rusty Blackbird --see map (Lori Zabel) first 11/18
++++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)
++++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

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

Weld County
++++Union Reservoir & area
Pacific Loon (Mlodinow) (first 11/9) last 11/18
Common Loon (Bill Prather/Aaron Yappert) (first 10/28) last 11/18
Bonaparte's Gull (3) (Mlodinow:Pheneger/Yappert) (first 10/17) 150; last
Lesser Black-backed Gull (Yappert) first 11/18
Greater Scaup (Mlodinow) first 11/16
++++Newell Lake
Greater White-fronted Goose (Komar) first 11/18
Bonaparte's Gull (2) (Komar) first 11/18

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
Common Redpoll --shelter belt along road at west entrance
(Kaempfer:Vanderpoel) first 11/18
Bonaparte's Gull (16) (Stevens) first 11/16
Barrow's Goldeneye (female) (Stevens) first 11/16
Bonaparte's Gull (16) (Stevens) first 11/16
Barrow's Goldeneye (female) (Stevens) first 11/16
++++Tamarack Ranch Wildlife Area
Greater White-fronted Goose (7) --Platte River & CR 93 (Bill Kaempfer)
first 11/18
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+) (Washburn & Thompson) last 11/18
Black-legged Kittiwake (Cole Wild/Washburn & Thompson) (first 11/14) last
Iceland Gull (Larson/Washburn & Thompson) (first 11/15) last 11/18
(latest on Gulls: southeast corner)
Common Loon (12) (Nick Moore/Stevens) (first 11/9) 2; last 11/18
White-winged Scoter (Wild/Stevens) (first 11/14) last 11/17
Mew Gull (2) (Larson/Stevens) (first 11/15) last 11/17
Winter Wren (Yappert) first 11/16
(Many gulls will visit throughout the day the outlet at northeast corner)

Logan/Washington Counties
++++Prewitt Reservoir area
Greater White-fronted Goose (Stevens) last 11/18
Bonaparte's Gull (Stevens) first 11/18
Iceland Gull (Stevens) first 11/18
Eastern Screech-Owl (Stevens) last 11/17

Morgan County
++++Jackson Reservoir & area
Harris's Sparrow (Dowell/Stevens) (first 10/12) last 11/18
White-throated Sparrow (2) (Mlodinow/Stevens) (first 9/30) last 11/18
(all above: south of Pelican campsite 89)
Long-eared Owl (Stevens) last 11/18
++++Brush Wildlife Area
Red-bellied Woodpecker (Stevens) last 11/17
Winter Wren (Stevens) first 11/17


Chaffee County
++++Ice Lake
Pinyon Jay (2) --Private property, view from road (Nick Moore) last 11/18
++++Sands Lake Wildlife Area
Barrow's Goldeneye (2) (Jack Harlan) first 11/17

Mesa County
++++Highline Lake State Park
Tundra Swan (2 adults, 6 imm) (Cary Atwood/Ortenzio & all) (first 11/10)
10; last 11/18
Common Loon (2) --Mack Mesa Lake (Lee Stigen/Ortenzio) (first 11/3) 2;
last 11/18
++++James Robb Colorado River State Park (Fruita section)
Black Phoebe (Carol Ortenzio & all) last 11/18
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

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

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
++++Antero Reservoir
Tundra Swan (3) (Somershoe:Shoup/Nick Moore) (first 11/9) 21; last 11/18

++++Eleven Mile Reservoir
Snow Bunting (Nick Moore) first 11/18
Surf Scoter (Kellner/Moore) (first 10/29) last 11/18
White-winged Scoter (Kellner/Moore) (first 10/29) last 11/18
Pacific Loon (Moore) first 11/18
++++Spinney Mountain Reservoir
Tundra Swan (Stevens:Michaels/Moore) (first 11/1) 11; last 11/18

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

San Miguel County
++++Miramonte Reservoir
Surf Scoter (3) (Dexter:Wright/Eric Hynes & all) (first 10/22) 4; last
White-winged Scoter (5) (Dexter:Wright/Eric Hynes) (first 10/23) 4; last
Barrow's Goldeneye (2) (Hynes & all) first 11/18
Sabine's Gull (1st winter) (Hynes & all) photographed 11/18
Common Loon (Eric Hynes) (first 10/22) 6; last 11/18

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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