Date: 11/8/19 6:05 am
From: Amy Davenport <cobussec...> [cobirders] <cobirders-noreply...>
Subject: [cobirders] Colorado Rare Bird Alert for November 8, 2019
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: 11/7/2019
Arapahoe (Tundra Swan, Bonaparte's Gull, Common Loon, Yellow-billed Loon?,
Lesser Black-backed Gull)
Boulder (Rusty Blackbird)
Broomfield (Barrow's Goldeneye)
Jefferson (Trumpeter Swan)
Jefferson/Douglas (Cassin's Vireo)
Larimer (Bohemian Waxwing, Pacific Loon, Bonaparte's Gull, Long-tailed
Duck, Common Loon)
Weld (Barrow's Goldeneye, Long-tailed Duck)

++++658 1/2 North 9th Street; Laramie (See Website )
Red-flanked bluetail (Cody Porter) first 11/4 NOT since
(approximately 25 miles from Colorado border; 65 miles from Fort Collins,


Adams County
++++Barr Lake
Dunlin (David Dowell) first 11/5
Least Sandpiper (Dowell) first 11/5

Arapahoe County
++++Littleton Cemetery
Tundra Swan (4) (David Suddjian) first 11/7
++++Cherry Creek Reservoir
Bonaparte's Gull (5) (Bez Bezuidenhout/Stevens) (first 10/26) 6; last 11/7
Common Loon (2) (Stevens)) (first 10/31) 2; last 11/7
Loon species (Stevens:Cole Sage/Stevens) (first 10/28) last 11/7
(looks more like a Yellow-billed than Common; see cobus blog)
++++Aurora Reservoir
Lesser Black-backed Gull (2) (Stevens) (first 10/18) last 11/7
Mew Gull (David Dowell) reported 11/5

Boulder County
++++Boulder Reservoir area
Rusty Blackbird (pair) (Phil Lyon) first 11/7
++++McIntosh Lake
Long-tailed Duck (4) (Todd Deininger:David Dowell) first 11/6
++++South 66th Street
Burrowing Owl (Christian Nunes) first 11/4

Broomfield County
++++Glasser Reservoir
Barrow's Goldeneye (M.OB.) first 11/7

Denver County
++++Marston Reservoir Area
Eastern Bluebird --Isthmus Park (Scott Somershoe) first 11/4

Jefferson County
++++Rocky Mountain Ditch at Kipling & Pond to North
Trumpeter Swan (2) --view from Kipling (Michael Lester:Michelle
Puplava/Kevin DeBoer) (first 11/6) last 11/7
++++Reynolds Park
American Three-toed Woodpecker (Stevens:Shannon/Stevens:Beers) (first
6/16) last 11/4
Dusky Grouse (Stevens:Shannon/Stevens:Beers) (first 6/16) last 11/4
Northern Pygmy-Owl --Songbird trail (CoBus group/Richard Stevens:Beers)
(first 4/22) last 11/4
++++Bear Creek Lake Park (fee area)
Black Scoter (James McCall:Phil Lyon/M.OB.) (first 10/25) last 11/4
(may have moved to Big Soda North Trail area)
++++Sunset Park
Eastern Bluebird (Scott Somershoe) first 11/4

Jefferson/Douglas Counties County
++++Chatfield Reservoir
Cassin's Vireo --Campgrounds (Caitlyn King) reported 11/7

Larimer County
++++Fort Collins
Bohemian Waxwing (3) --3413 Colony Drive (Josh Bruening) first 11/7
++++Rawhide Reservoir
Pacific Loon (David Leatherman) first 11/7
Bonaparte's Gull (20) (Leatherman) first 11/7
++++North Poudre Reservoir #4
Long-tailed Duck (M.OB./Nick Komar) (first 11/2) last 11/7
Bonaparte's Gull (2+) Leatherman) first 11/7
++++Douglas Reservoir
Common Loon (2) (John Shenot/Leatherman) (first 10/19) 11/7
Bonaparte's Gull (2+) (Leatherman) first 11/7
++++Larimer County Landfill & area
Gyrfalcon (Robert Beauchamp/M.OB.) (first 11/3) last 11/6
(All Above: seen from Trilby Road, west of Taft Hill)
(Restricted access to Landfill, see directions; closed on Sundays, no
view from outside of property)

Weld County
++++Windsor Lake
Barrow's Goldeneye (Josh Bruening) first 11/7
++++Arrowhead Lake
Tundra Swan (Zach Schiff) first 11/6


++++Jackson Reservoir & area
Long-tailed Duck (2) (Norm Lewis/David Tonnessen) (first 11/3) 1; last
Greater Scaup (Stevens:Beers/Scott Somershoe) (first 11/2) last 11/5
Long-eared Owl (Stevens:Beers) last 11/2
(all above: western Campgrounds)
Lapland Longspur (100+) --MCR 4/WCR 105 (Stevens:Beers) first 11/2


Clear Creek/Summit Counties
++++Loveland Pass
White-tailed Ptarmigan (2) (Richard Stevens:Don Beers) first 11/3
(Latest: below western side of Summit)

Fremont County
++++Arkansas Riverwalk
Green Heron -- Raynolds Avenue Trailhead (Bob Stogner) first 11/6

Mesa County
++++Colorado River along Interstate 70, north of Hwy 65
Trumpeter Swan --DeBeque Canyon (Carol Ortenzio) first 11/6
++++Highline Lake State Park
Tundra Swan (2) (Mike Henwood) first 11/5
Trumpeter Swan (2) (Ronda Woodward/Brooks Bennett) (first 10/27) last 11/4
++++Vega State Park
Lesser Black-backed Gull (Denise & Mark Vollmar/Mike Henwood) (first
11/3) last 11/5

Montrose County
++++Cerise Regional Park
Veery (Don Marsh) first 11/5

Park County
++++Spinney Mountain
Tundra Swan (21, Eleven Mile Reservoir flock +2) (David Tonnessen/M.OB.)
(first 10/31) 4; last 11/2
Surf Scoter (6) (M.OB.) first 11/2
Long-tailed Duck (M.OB.) first 11/2
Lesser Black-backed Gull (Mlodinow/M.OB.) (first 10/15) last 11/2

Rio Grande County
++++County Road 18
Tundra Swan (2) (David Kenvin) first 11/4

Summit County
++++Dillon Reservoir
Lesser Black-backed Gull (3rd year) --Snake River inlet (DFO) first 11/5

Trumpeter Swan (2) (Misty Walters) (first 11/1) last 11/4

Teller County
++++Green Mountain Falls
Band-tailed Pigeon (11) (Richard Bunn) last 11/6

Good birding!

Directions to birding spots and photos on CoBus website:

Amy Davenport, Secretary, Colorado Birding Society
Denver, CO
Contact CoBus/Report Interesting Birds: 303-324-7994
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