Date: 9/12/17 4:39 am
From: Amy Davenport <cobussec...> [cobirders] <cobirders-noreply...>
Subject: [cobirders] Colorado Rare Bird Alert for September 12, 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: 9/11/2017
Adams (American Redstart, Townsend's Warbler, Cassin's Vireo, Nashville
El Paso (Mississippi Kite, Cassin's Vireo, Burrowing Owl)
El Paso/Pueblo (Ladder-backed Woodpecker, Olive-sided Flycatcher, Least
Flycatcher, Curve-billed Thrasher, Northern Mockingbird, Cassin's Kingbird)
Jefferson/Douglas (Red Phalarope)
Weld (Townsend's Warbler, Chestnut-collared Longspur)
Bent (Yellow-billed Cuckoo, American Redstart, Red-headed Woodpecker)
Kiowa (Black-bellied Plover, Semipalmated Plover, Long-billed Curlew,
Marbled Godwit, Pectoral Sandpiper, Northern Waterthrush, Nashville Warbler)
Logan/Washington (American Golden-Plover, Marbled Godwit, Pectoral
Sandpiper, Red-necked Phalarope, Lesser Black-backed Gull)


Adams County
++++Barr Lake
American Redstart --banding station (McBurney/Michaels) (first 9/10) last
Townsend's Warbler (Michaels) last 9/11
Cassin's Vireo (Michaels) last 9/11
Nashville Warbler (Tracy Rackauskas/Michaels) (first 9/9) last 9/11
++++Rocky Mountain Arsenal
Least Flycatcher (Rebecca Laroche) first 9/10
Mississippi Kite --flyover Ladora to Havana Ponds (Jacob Washburn) first
Sage Thrasher (4+) --Rattlesnake Hill parking area (Stevens/Washburn)
(first 9/4) 1; last 9/9

Adams/Denver Counties
++++First Creek Trail
Nashville Warbler (2) --Adams cty section (John Breitsch) first 9/8
++++DIA Owl Loop
Burrowing Owl (1) --W. Cargo Road & Third Creek (Stevens:Kosten) last 9/4

Denver County
++++Bluff Lake Nature Area
Wild Turkey --east of Lake (Washburn/Jason Bidgood) (first 8/16) last

El Paso County
++++Fountain Creek Regional Park
Mississippi Kite (Jim Merritt) last 9/11
Cassin's Vireo (M.OB.) first 9/11
++++Hanover Road and area
Burrowing Owl (2) (John Drummond) last 9/11
Ladder-backed Woodpecker --at Old Pueblo Road (Diane Roberts) (first 9/5)
last 9/10
Sage Thrasher (2) (Diane Roberts) first 9/10
Northern Mockingbird --at Old Pueblo Road (Diane Roberts) (first 9/5)
last 9/10

El Paso/Pueblo Counties
++++Chico Basin Ranch (fee area)
Ladder-backed Woodpecker (John Drummond) last 9/11
Olive-sided Flycatcher --wooded areas (Kurt Mize/Drummond) (first 8/19)
1; last 9/11
Ash-throated Flycatcher (Tonnessen) first 9/10
Least Flycatcher --banding station (Alexander/Drummond) (first 8/27) last
Curve-billed Thrasher (1) (Drummond) last 9/11
Northern Mockingbird --banding station (Aaron Yappert/Drummond) 1; last
Black-and-white Warbler (Yappert/Diane Roberts) (first 9/4) last 9/10
Cassin's Sparrow (Tonnessen) last 9/10
Dickcissel (2) (Robb Hinds/Tonnessen) (first 9/9) 3; last 9/10
Red-eyed Vireo (Aaron Yappert/Driscoll) (first 9/5) last 9/9
(all above: banding station area, unless otherwise stated)
(All above: El Paso County)
Cassin's Kingbird --HQ (John Drummond) last 9/11
Curve-billed Thrasher (4) --HQ (John Drummond) last 9/11
(All above: Pueblo County)

Jefferson/Douglas County
++++Chatfield Reservoir area
Red Phalarope --marina sand spit (Frank Farrell) first 9/11
Sabine's Gull (5) --east of marina sandspit (Joey Kellner/Marion & John
Warren) (first 9/3) last 9/9
Lesser Black-backed Gull --marina sandspit (Holden:Glass/Stevens) (first
8/26) last 9/8

Larimer County
++++Arapahoe Bend Natural Area
Lesser Black-backed Gull (Walter Wehtje) first 9/10
++++Timnath Reservoir Map
Sabine's Gull (Walter Wehtje) first 9/10
Caspian Tern (4) (Joe Mammoser/Komar) (first 8/16) 1; last 9/10
++++Horseshoe Lake Map
Sabine's Gull (Nick Komar) first 9/10
++++Rocky Mountain National Park
Brown-capped Rosy Finch (50) --Medicine Bow Curve (John Oliver) last
++++Hewlett Gulch
Lewis's Woodpecker (5) (Lori Zabel/John Shenot) (first 9/3) last 9/9

Pueblo County
++++Pueblo Reservoir
Cassin's Vireo --Cottonwood picnic area (Art Hudak) first 9/10
Black-throated Green Warbler --Cottonwood picnic area parking lot
(Percival/Kathy Miller) (first 9/7) last 9/9
Eastern Phoebe Cottonwood/Snakeskin picnic areas (Percival) last 9/9
++++Valco Ponds
Black Phoebe (1) (Mark Yaeger) last 9/9
Eastern Phoebe (4) (Mark Yaeger) last 9/9

Weld County
++++Crow Valley Campground
Townsend's Warbler (2) (Gary Lefko/Norm Lewis) (first 9/10) last 9/11
Red-eyed Vireo (Gene Rutherford) first 9/10
Ovenbird (Cynthia Kristensen/Rutherford) (first 9/7) last 9/10
Black-throated Gray Warbler (Austin Hess) first 9/10
Blue-headed Vireo (Ryan Graves) reported 9/9
Olive-sided Flycatcher (Ryan Graves) first 9/9
Black-and-white Warbler (Ryan Graves) first 9/9
Nashville Warbler (Kellner/Graves) (first 9/8) last 9/9
Blackpoll Warbler (Graves) first 9/9
++++Pawnee National Grasslands area
Chestnut-collared Longspur (3) --Hwy 85/CR 114 (Gail Johnson) last 9/11
++++Norma's Grove
Least Flycatcher (Jean Olson) (first 9/3) last 9/10
Red-headed Woodpecker (Ryan Graves) last 9/9
Cassin's Kingbird (Rutherford/Graves) (first 9/8) last 9/9
Tennessee Warbler (Graves) first 9/9
++++Pawnee National Grasslands area
Chestnut-collared Longspur (15) --CR 47/south/CR 116 (Laroche/Jean Olson)
(first 8/19) 1; last 9/10


Bent County
++++Tempel Grove
Yellow-billed Cuckoo (Jane Stulp/Stevens:Washburn) (first 9/7) last 9/11
American Redstart (Leatherman/Stevens:Washburn) (first 9/4) last 9/11
Red-headed Woodpecker (Stevens:Washburn) last 9/11
Possible Black-billed Cuckoo (John Drummond) reported 9/8

Kiowa County
++++Lower Queens & Upper Queens Reservoirs
Black-bellied Plover (Steve Mlodinow/Stevens:Washburn) (first 9/10) last
Semipalmated Plover (2) (Mlodinow/Stevens:Washburn) (first 9/10) last 9/11
Long-billed Curlew (Mlodinow/Stevens:Washburn) (first 9/10) last 9/11
Marbled Godwit (3) (Mlodinow/Stevens:Washburn) (first 9/10) last 9/11
Pectoral Sandpiper (10) (Mlodinow/Stevens:Washburn) (first 9/10) last 9/11
American Golden-Plover (Mlodinow) reported 9/10
Buff-breasted Sandpiper (2) (Mlodinow) first 9/10
Short-billed Dowitcher (Mlodinow) reported 9/10
Dickcissel (Mlodinow) first 9/10
Black-billed Cuckoo --Upper Queens (Mlodinow) reported 9/10
Great Crested Flycatcher (4) --Upper Queens (Mlodinow) first 9/10
Palm Warbler --Upper Queens (Mlodinow) first 9/10
Indigo Bunting --Upper Queens (Mlodinow) first 9/10
Scarlet Tanager (Mlodinow) first 9/10
(all at Lower Queens Reservoir unless otherwise stated)
++++Neenoshe Reservoir
Northern Waterthrush (Steve Mlodinow/Stevens:Washburn) (first 9/10) last
Nashville Warbler (Stevens:Washburn) first 9/11
American Redstart (3) (Mlodinow) first 9/10
Chestnut-sided Warbler (Mlodinow) first 9/10


Logan/Washington Counties
++++Prewitt Reservoir area
American Golden-Plover (Kathy Mihm-Dunning/Norm Lewis) (first 9/8) last
Marbled Godwit (Blue/Lewis) (first 8/24) 4; last 9/11
Pectoral Sandpiper (Mihm-Dunning/Lewis) (first 9/8) 19; last 9/11
Red-necked Phalarope (8) (Mihm-Dunning/Lewis) (first 9/8) last 9/11
Lesser Black-backed Gull (Bill Kaempfer & all/Lewis) (first 9/9) last 9/11
Semipalmated Plover (Mlodinow/Aaron Yappert) (first 8/29) 12; last 9/10
Long-billed Curlew (Yappert) first 9/10
Buff-breasted Sandpiper (Mihm-Dunning/Yappert) (first 9/8) last 9/10
Common Tern (Walbek/Kaempfer & all/Yappert) (first 9/8) last 9/10
Ovenbird (Susan Wise) first 9/10
American Redstart (1) (Mihm-Dunning/Susan Wise) (first 9/8) last 9/10
Chestnut-sided Warbler (Chavez:Hudak/Susan Wise) (first 9/9) last 9/10
Sabine's Gull (Luke Pheneger) first 9/10
Black-and-white Warbler (Walbek/Pheneger) (first 9/8) 2; last 9/10
Blue-headed Vireo (Pheneger) reported 9/10
Bay-breasted Warbler (Mihm-Dunning/Pheneger) (first 9/8) last 9/10
Townsend's Warbler (Pheneger) last 9/10
Mississippi Kite (Kaempfer:Vanderpoel) first 9/9
Black-bellied Plover (Kaempfer) first 9/9
Northern Parula (Mihm-Dunning/Mark Chavez:Art Hudak) (first 9/8) last 9/9
(best shorebird location: southwest corner/access from inlet canal)
(best passerine location: inlet canal grove)

Washington County
++++Last Chance Rest Stop
Cassin's Vireo (David Dowell/Chavez:Hudak) (first 9/1) last 9/9
American Redstart (Mark Miller/Chavez:Hudak) (first 8/27) last 9/9
++++Washington Country Club Golf Course Park
Chestnut-sided Warbler (Glenn Walbek) first 9/8

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
See Website for many 9/6 Birds


Alamosa County
++++Cattails Golf Course
American Redstart --black tee/ Cougar Woods (John Rawinski) first 9/8
++++Blanca Wetlands
Snowy Plover --Pond 46 (Daniel Toronto:Leah Dodd/John Rawinski) (first
7/16) last 9/8

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

Clear Creek County
++++Mt. Evans Road
Brown-capped Rosy Finch (12) --summit (Will McPhail) last 9/9
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

Garfield County
++++Rifle Rest Stop
Black Phoebe (Sondra W) first 9/10

Gunnison County
++++Mt. Crested Butte
American Three-toed Woodpecker (2) (Marcel Such) first 9/9

Mesa County
++++Horsethief Canyon Wildlife Area
Northern Waterthrush (Mike Henwood) first 9/8
(small pond along River Trail)

Montezuma County
++++San Juan River Crossing at Four Corners
Black Phoebe (2) (John Coons) first 9/10

Montrose County
++++Nucla Town Reservoir
Pinyon Jay (9) (Dexter:Wright) (first 8/6) 2; last 9/9
++++Black Canyon of Gunnison National Park
Dusky Grouse (1) --Campgrounds (John Coons) last 9/7

Ouray County
++++Baby Bathtubs portion of Ouray Perimeter
Cassin's Vireo (Jon Horn) first 9/10
Townsend's Warbler (Jon Horn) first 9/10
++++Ridgway State Park
Gray Vireo --Visitor's Center (Jon Horn) first 9/10
++++Ouray and Box Canyon Falls
Black Swift (2) (Glenn Walbek/Jon Horn) (first 6/11) 2; last 9/9
++++Billy Creek Wildlife Area
Black Phoebe (Kent Nelson/Jon Horn) (first 5/6) last 9/9
++++Ridgway (Moffat Street)
Lewis's Woodpecker (Jon Horn) first 9/9

Saguache County
++++Russell Lakes Wildlife Area
American Bittern (2) (John & Kathy Keagle/JoAnn Riggle) (first 5/26) last

Summit County
++++North Tenmile Trailhead
Williamson's Sapsucker (male) (Jack & Ryan Bushong) first 9/9

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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