Date: 9/8/17 4:22 am
From: Amy Davenport <cobussec...> [cobirders] <cobirders-noreply...>
Subject: [cobirders] Colorado Rare Bird Alert for September 8, 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: 9/7/2017
Adams (Townsend's Warbler)
Bent (Yellow-bellied Flycatcher, Magnolia Warbler, Yellow-billed Cuckoo,
Red-headed Woodpecker, Olive-sided Flycatcher)
Chaffee (Lewis's Woodpecker)
El Paso (Tennessee Warbler, Olive-sided Flycatcher, Northern Waterthrush)
El Paso/Pueblo (Northern Mockingbird, Ovenbird, American Redstart)
Fremont (Lewis's Woodpecker)
Huerfano (Pinyon Jay)
Jefferson/Douglas (Black Phoebe, Eastern Phoebe, Sabine's Gull, American
Larimer (Black-bellied Plover)
Montrose (Dusky Grouse)
Otero (Greater Roadrunner, Scissor-tailed Flycatcher, Mississippi Kite)
Pueblo (Townsend's Warbler, Black-throated Green Warbler, Townsend's
Warbler, Black-and-white Warbler, Blackpoll Warbler)
Weld (Ovenbird, Tennessee Warbler, Blackpoll Warbler, Red-eyed Vireo,
Tennessee Warbler, Red-necked Phalarope, Red-headed Woodpecker, Least
Yuma (Greater Prairie-Chicken, Blue-headed Vireo, Northern Cardinal,
Northern Waterthrush, Olive-sided Flycatcher, Red-headed Woodpecker, Bell's


Adams County
++++Barr Lake
Townsend's Warbler (6) (Pheneger/McBurney) (first 8/27) 9/7
Cassin's Vireo (2) (Stevens/McBurney) (first 8/14) last 9/5
Tennessee Warbler (McBurney) first 9/5
++++Rocky Mountain Arsenal
Cassin's Vireo (Jacob Washburn) first 9/5
(along First Creek trail, accessed from Buckley Road)
Red-headed Woodpecker (Stevens/Washburn) (first 9/4) last 9/5
Sage Thrasher
(4+) --Rattlesnake Hill parking area (Stevens/Washburn) (first 9/4) 2;
last 9/5
++++Eastlawn Memorial Cemetery
Townsend's Warbler (Dave King) first 9/5

Adams/Denver Counties
++++First Creek Trail
Barn Owl --Denver Cty (Pablo Queszada) 2; last 9/4
++++DIA Owl Loop
Burrowing Owl (1) --W. Cargo Road & Third Creek (Stevens:Kosten) last 9/4

Arapahoe County
++++Aurora Sports Park
American Redstart (Dave King) first 9/5
(Along Sand Creek, 100 yards south of east-west to north-south bend)
++++Picadilly Road & 6th Avenue
Northern Mockingbird (Dave King) first 9/5

Boulder County
++++Wild Basin Section of Rocky Mountain National Park
Black Swift (4) --Ouzel Falls (Myron Gerhard) last 9/6
++++Warembourg Open Space Area
Olive-sided Flycatcher (Jack Bushong) (first 9/1) last 9/6
++++Golden Ponds
American Redstart (Luke Pheneger/David Dowell) (first 8/26) 2; last 9/5
++++Fourth of July Campground
Brown-capped Rosy Finch (4) (Luke Pheneger/Stephen Chang) (first 7/30) 2;
last 9/5

Denver County
++++Bluff Lake Nature Area
Wild Turkey --east of Lake (Washburn/Pablo Queszada) (first 8/16) last 9/6
Least Flycatcher (Jacob Washburn) first 9/6

El Paso County
++++Pupit Rock Park
Tennessee Warbler (Del Nelson) first 9/7
Olive-sided Flycatcher (Del Nelson) first 9/7
Blue-headed Vireo (Alan Versaw) first 9/6
Cassin's Vireo (Versaw) first 9/6
++++Clear Spring Ranch
Northern Waterthrush --banding station (#5 for season) (Steve Brown)
first 9/7
++++Fountain Creek Regional Park
Tennessee Warbler (David Tonnessen) first 9/5
Nashville Warbler (Tonnessen) first 9/5
Blackpoll Warbler (Tonnessen) first 9/5
Cassin's Kingbird (Tonnessen) first 9/5
Indigo Bunting (Tonnessen) first 9/5
++++Hanover Road and area
Ladder-backed Woodpecker --at Old Pueblo Road (Diane Roberts) first 9/5
Northern Mockingbird --at Old Pueblo Road (Diane Roberts) first 9/5

El Paso/Pueblo Counties
++++Chico Basin Ranch (fee area)
Northern Mockingbird --banding station (Aaron Yappert) 3; last 9/7
Ovenbird (Aaron Yappert) (first 9/6) last 9/7
American Redstart (Yappert) first 9/7
Black-and-white Warbler (Yappert/M.OB.) (first 9/4) last 9/6
Williamson's Sapsucker --Bell Grove (Mel Goff/Diane Roberts) (first 9/4)
last 9/5
Red-eyed Vireo (Aaron Yappert) first 9/5
(all above: banding station area, unless stated)
(All above: El Paso County)
Ladder-backed Woodpecker --headquarters (John Drummond) last 9/6
Cassin's Vireo --headquarters (John Drummond) last 9/6
Curve-billed Thrasher (4) --HQ (John Drummond) last 9/6
Northern Mockingbird (3) --HQ (Drummond) last 9/6
Cassin's Sparrow --HQ (Drummond) last 9/6
American Redstart --headquarters (Gary Koehn) first 9/5
Dickcissel --headquarters (Kevin Ash) first 9/5
(All above: Pueblo County)

Huerfano County
++++Lathrop State Park
Pinyon Jay (5) (JoAnn Riggle) first 9/7

Jefferson/Douglas County
++++Chatfield Reservoir area
Black Phoebe --swim beach (Holub/Betty Glass) first (first 9/2) last 9/7
Eastern Phoebe --swim beach (Brian Johnson) (first 9/3) last 9/7
American Redstart --swim beach (Lorraine Lanning) first 9/7
Sabine's Gull (5) --east of marina sandspit (Joey Kellner/Daniel
Flemming) (first 9/3) last 9/7
Olive-sided Flycatcher --swim beach (Pablo Quezada) first 9/6
Long-billed Curlew (Phil Lyon) first 9/5
Marbled Godwit (Phil Lyon) first 9/5
Lesser Black-backed Gull --marina sandspit (Holden:Glass/Lyon) (first
8/26) last 9/5
Cassin's Vireo --swim beach (Kilpatrick) first 9/5
Northern Waterthrush --swim beach (Kilpatrick) first 9/5
Nashville Warbler --swim beach (Kilpatrick) first 9/5

Larimer County
++++South Bartels Reservoir
Black-bellied Plover (Lori Pivonka/David Wade) (first 9/6) last 9/7
++++Rocky Mountain National Park
Brown-capped Rosy Finch
(15) --Medicine Bow Curve (Adam Dudley) last 9/6
(100) --Mount Chapin Trail (Thomas Archdeacon) last 9/5
++++Timnath Reservoir
Caspian Tern (2) (Joe Mammoser) (first 8/16) 3; last 9/5
++++Riverbend Ponds Natural Area
Cassin's Vireo (David Wade) first 9/5
Blackpoll Warbler (Wade) first 9/5

Pueblo County
++++Pueblo Reservoir
Townsend's Warbler (2) --Osprey picnic area (Brandon Percival) first 9/7
Black-throated Green Warbler --Cottonwood picnic area (Percival) first 9/7
Townsend's Warbler (2) --Cottonwood picnic area (Percival) first 9/7
Black-and-white Warbler --Cottonwood picnic area (Percival) first 9/7
++++Cattail Crossing
Blackpoll Warbler (Pecival) first 9/7
++++Valco Ponds
Black Phoebe (1) (Mark Yaeger) last 9/4
Eastern Phoebe (4) (Mark Yaeger) last 9/4

Weld County
++++Cozzens Lake
Blackpoll Warbler (Rutherford) first 9/7
++++Clark Lake
Red-eyed Vireo (Gene Rutherford) first 9/7
++++County Road 57, north of Hwy 14
Tennessee Warbler (Gene Rutherford) first 9/7
Field Sparrow (Loch Kilpatrick) first 9/6
++++Beebe Draw Ponds area
Red-necked Phalarope --CR 42 (Gary Lefko) first 9/7
++++Norma's Grove
Red-headed Woodpecker (Gene Rutherford) last 9/7
Least Flycatcher (Jean Olson/Rutherford) (first 9/3) last 9/7
Blue-headed Vireo (Loch Kilpatrick) first 9/6
++++County Road 57, north of Hwy 14
Tennessee Warbler (Gene Rutherford) first 9/7
Field Sparrow (Loch Kilpatrick) first 9/6
++++Crow Valley Campground
Ovenbird (Cynthia Kristensen) first 9/7
Least Flycatcher (Gene Rutherford) last 9/6
American Redstart (2) (Steve Mlodinow/Loch Kilpatrick) (first 8/22) last
Baltimore Oriole (Rutherford) reported 9/5


Baca County
++++Two Buttes Reservoir & area
Prothonotary Warbler (Percival) first 9/5
Great Crested Flycatcher (2) (Mlodinow/Percival) (first 9/3) last 9/5
Blue-headed Vireo (2) (Mlodinow/Percival) (first 9/3) last 9/5
Cassin's Vireo (Percival) first 9/5
Red-eyed Vireo (Percival) first 9/5
Tennessee Warbler (Mlodinow/Percival) (first 9/3) last 9/5
Black-and-white Warbler (Percival) first 9/5
American Redstart (3) (Percival) first 9/5
Ovenbird (Percival) first 9/5
Least Flycatcher (Percival) first 9/5
Green Heron (Percival) first 9/5

Bent County
++++Tempel Grove
Yellow-bellied Flycatcher --north side of Canal, east of CR 35 (Duane
Nelson) first 9/7
Magnolia Warbler (1st year female) (Duane Nelson) first 9/7
Yellow-billed Cuckoo (Leatherman/Jane Stulp) (first 9/4) 2; last 9/7
Red-headed Woodpecker (Jane Stulp) 3; last 9/7
Olive-sided Flycatcher (Stulp) first 9/7
Barn Owl (2) (Percival) last 9/5
Great Crested Flycatcher (2) (Leatherman/Percival) (first 9/4) last 9/5
Least Flycatcher (Percival) first 9/5
Cassin's Vireo (2) (Percival) first 9/5
Blue-headed Vireo (Percival) first 9/5
Red-eyed Vireo (Percival) first 9/5
American Redstart (Leatherman/Percival) (first 9/4) last 9/5
Ovenbird (2) (Percival) first 9/5
Townsend's Warbler (Percival) first 9/5
++++John Martin Reservoir area
American Redstart (Holmgren/Percival) (first 8/28) 2; last 9/5
Red-eyed Vireo (Percival) first 9/5
(all above: Lake Hasty Campgrounds)

Otero County
++++La Junta (4th Street/west of Colorado Ave)
Greater Roadrunner (Susan Dietrich-Schneider) first 9/7
Scissor-tailed Flycatcher (Dietrich-Schneiger) first 9/7
Mississippi Kite (Dietrich-Schneiger) last 9/7

Prowers County
++++Lamar Community College
Northern Cardinal (2) (Percival) last 9/5
American Redstart (Percival) first 9/5
Chestnut-sided Warbler (1st fall female) (Leatherman:Thompson) first 9/4
++++Lamar (14th & Parkway)
Great Crested Flycatcher (Dorothy Russell) first 9/5
Red-eyed Vireo (Russell) first 9/5
Baltimore Oriole (2) (Russell) first 9/5


Kit Carson County
++++Flagler Reservoir
Blue-headed Vireo (Stevens:Michaels) first 9/5
Red-eyed Vireo (Stevens:Michaels) first 9/5
Great Crested Flycatcher (Stevens:Michaels) first 9/5
Ovenbird (Stevens:Michaels) first 9/5
Red-headed Woodpecker (Stevens:Michaels) last 9/5
American Redstart (Dowell/Stevens:Michaels) (first 9/1) last 9/5

Logan/Sedgwick County
++++Jumbo Reservoir
Pectoral Sandpiper (Steve Larson/Brad Andres) (first 8/22) last 9/6

Phillips County
++++Frenchman Creek Wildlife Area
Red-headed Woodpecker (Norm Lewis) first 9/6

Washington County
++++Last Chance Rest Stop
Northern Waterthrush (Mark Miller/Candice Johnson) (first 8/27) last 9/5
Least Flycatcher (Candice Johnson) first 9/5
Cassin's Vireo (David Dowell/Shoup) (first 9/1) last 9/4

Yuma County
++++Yuma County Road 45
Greater Prairie-Chicken (7) (Stevens:Kosten/Stevens:Michaels) (first
2/18) 2; last 9/7
--Between Hwy 385 and Lek, 1.7 miles/east/hwy 385
++++Sandhiller Motel, Wray
Blue-headed Vireo --cottonwood, east end of parking lot
(Stevens:Michaels) first 9/7
++++Stalker Pond
Northern Cardinal (2) (Stevens:Michaels) last 9/7
Northern Waterthrush (Stevens:Michaels) first 9/7
++++Wray Fishing Unit
Olive-sided Flycatcher (Stevens:Michaels) first 9/7
Northern Cardinal (Stevens:Michaels) last 9/7
++++Sandsage Wildlife Area
Red-headed Woodpecker (Stevens:Michaels) last 9/7
Bell's Vireo (Stevens:Michaels) first 9/7
++++Wray City Park
Red-headed Woodpecker (Stevens:Michaels) first 9/7
++++Bonny Reservoir Area
Blue-headed Vireo (Stevens:Michaels) first 9/6
Cassin's Vireo (2) (Stevens:Michaels) first 9/6
American Redstart --wagon wheel (Linda Lee/Stevens:Michaels) (first 9/4)
last 9/6
Magnolia Warbler --Hale Ponds (Stevens:Michaels) first 9/6
Nashville Warbler --Hale Ponds (Stevens:Michaels) first 9/6
Townsend's Warbler --Hale Ponds (Mlodinow/Stevens:Michaels) (first 9/1)
last 9/6
Great Crested Flycatcher --Hale (Stevens:Michaels) last 9/6
Red-bellied Woodpecker --Hale (Stevens:Michaels) last 9/6
Red-bellied Woodpecker (3) --Hale Ponds (Stevens:Michaels) last 9/6
Red-headed Woodpecker (5) --wagon wheel (Stevens:Michaels) last 9/6
Red-headed Woodpecker (6) --Hale Ponds (Stevens:Michaels) last 9/6
Baltimore Oriole (5) --Hale Ponds (Mlodinow/Stevens:Michaels) (first 9/1)
last 9/6
Northern Cardinal --Foster's Grove (Stevens:Michaels) last 9/6
Eastern Screech-Owl (2) --Hale Ponds (Stevens:Michaels) last 9/6
Eastern Screech-Owl (1) --Hale (Stevens:Michaels) last 9/5
Eastern Screech-Owl (3) --Republican River (Stevens:Michaels) last 9/5
Short-eared Owl (Stevens:Michaels) last 9/5
Long-eared Owl (1) (Stevens:Michaels) last 9/5
Common Poorwill (Stevens:Michaels) last 9/5


Alamosa County
++++Great Sand Dunes National Monument
Pinyon Jay (8) --Visitor's Center (CoBus Groups/JoAnn Riggle) (first
6/28) 30; last 9/5
++++Zapata Falls & area
Black Swift (16) (CoBus Groups/Greg Levandoski) (first 6/28) 8; last 8/31

Chaffee County
++++Chaffee County
Lewis's Woodpecker (1) --Buena Vista Nature trail (David Webb) last 9/7

Clear Creek County
++++Mt. Evans Road
Barrow's Goldeneye (2+) --Echo Lake (Dave King/Lorraine Lanning) (first
5/11) 5; last 9/5
American Three-toed Woodpecker (1)--Echo Lake
(Fontenot:Bezuidenhout/Lorraine Lanning) (first 7/16) last 9/5

Custer County
++++DeWeese Reservoir
Sabine's Gull (juvenile) (Cheryl Teuton/Rich Miller) (first 9/3) last 9/6
Chestnut-sided Warbler (juv) --below dam (Rich Miller) first 9/6

Fremont County
++++County Road 19, south of CR 106
Lewis's Woodpecker (2) (Sandra Ewald) first 9/7

Mesa County
++++James Robb Colorado River State Park
Black Phoebe (Brett Walker) last 9/4

Montrose County
++++Black Canyon of Gunnison National Park
Dusky Grouse (1) --Campgrounds (John Coons) last 9/7
++++Airport Lake Area
Black Phoebe --Cooper's Ditch, see map (Dexter:Wright) first 9/5
Lewis's Woodpecker --Cooper's Ditch, see map (Dexter:Wright) first 9/5

Ouray County
++++Ouray and Box Canyon Falls
Black Swift (2) (Glenn Walbek/Linnea Rowse) (first 6/11) 6; last 9/6

Park County
++++Antero Reservoir
Long-tailed Jaeger (Steve Mlodinow/Joel Adams) (first 8/26) last 9/4

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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