Date: 11/6/17 3:38 am
From: Amy Davenport <cobussec...> [cobirders] <cobirders-noreply...>
Subject: [cobirders] Colorado Rare Bird Alert for October 6, 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: 11/5/2017
Adams (Iceland Gull)
Arapahoe (Mew Gull, Lesser Black-backed Gull, Bonaparte's Gull, Red-necked
Grebe, Swamp Sparrow)
Boulder (Surf Scoter, American Bittern, Bonaparte's Gull, Common Loon,
Northern Mockingbird)
Chaffee (American Three-toed Woodpecker)
Crowley (Black-legged Kittiwake)
Denver (Northern Mockingbird)
Jefferson (Swamp Sparrow, Common Loon)
Jefferson/Douglas (Swamp Sparrow)
Kiowa (Harris's Sparrow)
Larimer (Bonaparte's Gull, Parasitic Jaeger, Red-throated Loon, Greater
Scaup, Lesser Black-backed Gull, Common Loon, Bonaparte's Gull, Pacific
Loon, Greater White-fronted Goose, Eastern Screech-Owl)
Logan (Eastern Screech-Owl)
Logan/Sedgwick (Surf Scoter, Red-throated Loon, Snow Bunting, Chipping
Logan/Washington (White-winged Scoter, Black-bellied Plover, Red-bellied
Woodpecker, Eastern Bluebird)
Mesa (Black Phoebe)
Morgan (Surf Scoter, Common Loon, Bonaparte's Gull, Iceland Gull, Lesser
Black-backed Gull)
Park (Pacific Loon, Common Loon)
Pueblo (Red-throated Loon, Common Loon)
Sedgwick (Fox Sparrow, Harris's Sparrow, Surf Scoter, Snow Bunting,
Chipping Sparrow, Greater White-fronted Goose, Harris's Sparrow)


Adams County
++++Barr Lake
Iceland Gull (Daniel Horton) first 11/5

Arapahoe County
++++Aurora Reservoir
Mew Gull (Dave King) first 11/5
Lesser Black-backed Gull (Dave King) first 11/5
Bonaparte's Gull (Stevens:Kosten/Dave King) (first 10/28) last 11/5
(All above: from south end, mile 2.5 shore)
++++Cherry Creek Reservoir
Red-necked Grebe (Stevens/Matt Newport) (first 11/3) 2; last 11/5
Swamp Sparrow --Pelican Point (Richard Stevens/Coby Klein) (first 11/3)
last 11/5
Lesser Black-backed Gull (Ben Sampson) first 11/5
Common Loon (Richard Stevens) (first 10/16) last 11/3
Bonaparte's Gull (Michaels/Stevens) (first 10/19) 8; last 11/3
++++McLellan Reservoir
Common Loon (Betty Glass) first 11/3

Arapahoe/Jefferson Counties
++++South Platte Park Reservoir & Area
Surf Scoter (2) --southwest corner, Jefferson Cty (Bart Deferme/Helen
Butts) (first 10/25) 3; last 11/3

Boulder County
++++Wonderland Lake Park
Surf Scoter (Ernest Crvich) first 11/5
++++Walden Ponds
American Bittern --southeast corner/cottonwood marsh (Sharon Norfleet)
first 11/5
++++McIntosh Lake
Bonaparte's Gull (21) (David Dowell/Christian Nunes) (first 11/2) 2; last
Ross's Goose (Todd Deininger) first 10/30
++++Valmont Reservoir Complex
Common Loon (Jeff Parks) (first 10/1) last 11/5
Northern Mockingbird (Jeff Parks) first 11/5
++++Terry Lake, Boulder
Common Loon (Fawn Simonds) first 11/4
Bonaparte's Gull (33) (David Dowell) first 11/2
++++Boulder Reservoir
Lesser Black-backed Gull (Luke & Tracy Pheneger) first 11/4
++++Lagerman Reservoir
Bonaparte's Gull (Stevens:Michaels/Pheneger) (first 10/27) last 11/4
++++Dodd Reservoir
Greater White-fronted Goose (Luke Pheneger) first 11/4

Broomfield County
++++Plaster Reservoir
Swamp Sparrow (David Ely) first 11/3

Denver County
++++Westerly Creek Park
Northern Mockingbird (Jason Bidgood) first 11/5
++++Marston Reservoir
Common Loon (4) (Kibbe/Mike Serruto) (first 10/23) 3; last 11/4
Red-necked Grebe --Isthmus Park (Matt Clark) first 11/3

El Paso County
++++Pulpit Rock Park
Lewis's Woodpecker (Diana Beatty) first 11/4
++++Doubletree Hotel Pond
Rusty Blackbird (David Tonnessen) reported 11/1

Jefferson County
++++Harriman Lake Park
Swamp Sparrow (Kate Frost/Chavez:Hudak) (first 10/31) last 11/5
++++Bear Creek Lake Park
Common Loon (3) (Mark Chavez/Weston Petty) (first 10/31) last 11/5
++++Van Bibber Trail
Eastern Screech-Owl (Edmond Holroyd) last 11/3

Jefferson/Douglas Counties County
++++Chatfield Reservoir area
Swamp Sparrow --north boat ramp (John Haycraft) first 11/5
Rusty Blackbird --northeast of swim beach (Frank Farrell/Norm Lewis)
(first 11/2) last 11/3
Swamp Sparrow --Plum Creek delta (Lorraine Lanning/John Haycraft) (first
11/1) last 11/3
Swamp Sparrow --Platte River Delta (John Haycraft) first 11/3

Larimer County
++++North Poudre Reservoir #6/a>
Bonaparte's Gull (1) (Komar) first 11/5
++++Arapahoe Bend Natural Area (Rigden Reservoir) Map
Parasitic Jaeger --Rigden Reservoir; Horsetooth & Strauss Cabin Road
(Josh Bruening) first 11/5
++++Timnath Reservoir Map
Red-throated Loon (Bob Righter/Robert Beauchamp) (first 11/3) last 11/5
Common Loon (Bob Righter/Beauchamp) (first 11/3) last 11/5
Greater Scaup (3) (Art Hudak:Mark Chavez) first 11/5
Lesser Black-backed Gull (Josh Bruening) (first 11/3) last 11/5
Parasitic Jaeger (dark morph juv) (Josh Bruening/Nick Komar) (first 11/3)
last 11/4
++++Boyd Lake State Park Map
Common Loon (Nick Komar/Luke Pheneger) (first 11/2) 3; last 11/5
Bonaparte's Gull (Pheneger) first 11/5
++++Horseshoe Lake Map
Bonaparte's Gull (4) (Nick Komar) first 11/5
++++Tri-Lakes Area Map
Pacific Loon (Nick Komar) first 11/5
++++Bee Lake Reservoir #5
Common Loon (Austin Hess) first 11/5
++++Lake Loveland Map
Lesser Black-backed Gull (7) (Komar) 2; last 11/5
Bonaparte's Gull (Joshua Smith/Walter Wehtje) (first 10/24) 3; last 11/4
Mew Gull (Nick Komar: Walter Wehtje) first 11/4
Iceland Gull (Komar:Wehtje) first 11/4
++++Long Pond Map
Greater White-fronted Goose (1) (Jacy Bernath-Plaisted) first 11/5
++++Grandview Cemetery Map
Eastern Screech-Owl (John Shenot) last 11/5

Pueblo County
++++Pueblo Reservoir
Red-throated Loon --sailboard launch area (Percival) first 11/5
Common Loon (5) (Percival) 6; last 11/5

Weld County
++++County Road 43
Pectoral Sandpiper (2) --south of CR 44 (Cheri Phillips) first 11/1
++++Union Reservoir
Bonaparte's Gull (3) (Mlodinow:Pheneger/Steve Mlodinow) (first 10/17) 30;
last 11/1
++++County Roads
Lapland Longspur
(2) --CR 33/1.0 miles south/CR 98 (Gary Lefko) first 10/31
(6) --CR 29/0.5 miles north CR 90 (Lefko) first 10/31

Southeastern Colorado

Crowley County
++++Lake Henry
Black-legged Kittiwake (Stan Oswald) first 11/4

Kiowa County
++++Stuart Pond area
Harris's Sparrow (6) (Bill Kaempfer) first 11/5

Otero County
++++Lake Holbrook
Red-necked Grebe (Setta Moss) first 11/3

Prowers County
++++Lamar Community College
Carolina Wren (2) --south end of woods (David Leatherman) reported 11/3
White-throated Sparrow --east of library (Leatherman) first 11/3
Northern Cardinal (4) (Leatherman) last 11/3
++++County Road SS
White-throated Sparrow --just east of CR 13 (Leatherman) first 11/3


Logan County
++++Tamarack Ranch Wildlife Area
Eastern Screech-Owl (4) (Mlodinow) last 11/5

Logan/Sedgwick Counties
++++Jumbo Reservoir
Red-throated Loon (Mlodinow) first 11/5
Surf Scoter (Mlodinow) first 11/5
Snow Bunting (2) (Mlodinow) first 11/5
Chipping Sparrow (Mlodinow) first 11/5

Logan/Washington Counties
++++Prewitt Reservoir area
White-winged Scoter (8) (Mlodinow) first 11/5
Black-bellied Plover (Mlodinow) first 11/5
Red-bellied Woodpecker (Jeff Dawson/Mlodinow) (first 9/30) last 11/5
Eastern Bluebird (Mlodinow) first 11/5

Morgan County
++++Jackson Reservoir & area
Surf Scoter (Mlodinow) first 11/5
Common Loon (Mlodinow) first 11/5
Bonaparte's Gull (5) (Mlodinow) first 11/5
Iceland Gull (Mlodinow) first 11/5
Lesser Black-backed Gull (Mlodinow) first 11/5

Phillips County
++++Haxtun Sewage Ponds
Greater White-fronted Goose (7) (Riley Morris) first 11/4

Sedgwick County
++++DePoorter Lake
Fox Sparrow (red form) (Stevens:Kosten) first 11/5
Harris's Sparrow (Stevens:Kosten) first 11/5
Greater White-fronted Goose (7) (Mlodinow) first 11/5
Harris's Sparrow (Mlodinow) first 11/5


Chaffee County
++++Link School Camp
American Three-toed Woodpecker (2) (Christian Hagenlocher) (first 9/30)
last 11/5

Mesa County
++++James Robb Colorado River State Park (Fruita)
Black Phoebe (Katey Buster:Kathleen McGinley) last 11/4
++++Colorado National Monument
Pinyon Jay (21) --Devil's Kitchen (Phil Lyon) last 11/4
++++Highline Lake State Park
Common Loon (2) --Mack Mesa Lake (Lee Stigen) first 11/3

Montezuma County
++++Narraguinnep Reservoir
Surf Scoter (Jason St. Pierre) first 11/4
++++McPhee Reservoir
Common Loon (2) (Dexter:Wright/Erik Henderickson) (first 10/23) 3; last

Montrose County
++++East 5th Avenue, Nucla
Pinyon Jay (53) (Dexter:Wright) (first 9/15) 48; last 11/3

Park County
++++Eleven Mile Reservoir
Pacific Loon (Owens & all/Kellner & all) (first 11/4) last 11/5
Common Loon (5) (Kellner & all) last 11/5
Surf Scoter (24) (Joey Kellner & all/Chris Owens & all) (first 10/29) 2;
last 11/4
Long-tailed Duck (Chris Owens & all) first 11/4
White-winged Scoter (4) (Joey Kellner & all/John Drummond) (first 10/29)
2; last 11/3

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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