Date: 9/20/18 3:59 am
From: Amy Davenport <cobussec...> [cobirders] <cobirders-noreply...>
Subject: [cobirders] Colorado Rare Bird Alert for September 20, 2018
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:
http://groups.yahoo.com/group/cobirders/messages

Report Uncommon Birds at: 303-324-7994 or http://coloradobirdingsociety.net

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!
Adams (Red-eyed Vireo)
Boulder (Cassin's Vireo, Black-and-white Warbler, White-tailed Ptarmigan,
Dusky Grouse, Brown-capped Rosy Finch, Broad-winged Hawk)
El Paso/Pueblo (Common Tern, Ladder-backed Woodpecker, Great Crested
Flycatcher, Curve-billed Thrasher, Gray Flycatcher, Northern Mockingbird,
Palm Warbler, Scarlet Tanager, Least Flycatcher, Cassin's Vireo, Townsend's
Warbler, Dickcissel)
Fremont (Curve-billed Thrasher)
Jackson (Greater Sage-Grouse)
Jefferson (American Three-toed Woodpecker)
Jefferson/Douglas (Eastern Phoebe)
Larimer (Mew Gull, Pectoral Sandpiper, Burrowing Owl, Nashville Warbler,
Broad-winged Hawk, American Redstart, Townsend's Warbler, Red-headed
Woodpecker)
Logan (Eastern Screech-Owl, Yellow-billed Cuckoo, Red-headed Woodpecker,
Red-bellied Woodpecker, Field Sparrow, Cassin's Vireo, Blue-headed Vireo,
Nashville Warbler, Magnolia Warbler, Blackburnian Warbler, Cassin's
Kingbird)
Logan/Sedgwick (Pectoral Sandpiper, Common Tern)
Mesa (Townsend's Warbler, Lewis's Woodpecker, Olive-sided Flycatcher,
Cassin's Vireo, Pinyon Jay)
Otero (Pectoral Sandpiper, Red-necked Phalarope)
Prowers (Ruby-throated Hummingbird)
Pueblo (Red-necked Phalarope, Long-tailed Jaeger, Parasitic Jaeger, Common
Tern, Lesser Black-backed Gull, Palm Warbler, Green Heron)
Weld (Common Tern, Sage Thrasher)

FRONT RANGE AND NORTHEASTERN COLORADO

Adams County
++++Barr Lake
Red-eyed Vireo (McBurney) first 9/19
Semipalmated Plover (2) (Wiltse/Donald Pendleton) (first 9/15) last 9/17
Pectoral Sandpiper (2) (Cynthia Madsen/Donald Pendleton) (first 9/8) 3;
last 9/17
Red-necked Phalarope (28) (Dowell/Adam Vesely) (first 9/13) 14; last 9/17
Sabine's Gull (Wiltse/Vesely) (first 9/15) last 9/17

Arapahoe County
++++Coal Creek Regional Park
Red-eyed Vireo --east end of trail (Terry Michaels) first 9/18
Least Flycatcher --see map (Cathy Sheeter) first 9/17
++++Cherry Creek Reservoir area
Mew Gull (Ben Sampson/Stevens) (first 8/13) last 9/17
Sabine's Gull (2) (Stevens) (first 9/10) adult; 9/17

Boulder County
++++Apple Valley Road, north of Lyons
Cassin's Vireo (Chris Brown/Luke & Tracy Pheneger) (first 9/15) last 9/19
++++Pleasant View Marsh
Black-and-white Warbler (Ernest Crvich) first 9/19
++++Brainard Lake Area, Mt Audubon Trail
White-tailed Ptarmigan (Chris Brown) 3; last 9/19
Dusky Grouse (Chris Brown) last 9/19
Brown-capped Rosy Finch (3) (Chris Brown) last 9/19
++++Boulder (4949 Pearl East Circle)
Broad-winged Hawk (Scott Severs) first 9/19

Denver County
++++Bluff Lake Nature Area
Green Heron (George Ho/Jake Shorty) (first 6/21) last 9/18

El Paso County
++++Kettle Lakes
Eastern Phoebe (John Drummond) first 9/18
++++Paint Mines Interpretive Park
Sage Thrasher (Scott Chalmers) first 9/18
++++Clear Spring Ranch
Ladder-backed Woodpecker (Goff & all) first 9/17
Nashville Warbler (Ketcham) first 9/17
++++Adams Open Space
Olive-sided Flycatcher (Terence Berger) first 9/17

El Paso/Pueblo Counties County
++++Chico Basin Ranch (fee area)
Common Tern (Robb Hinds) first 9/19
Ladder-backed Woodpecker (Hinds) last 9/19
Great Crested Flycatcher (Jim Merritt) first 9/19
Curve-billed Thrasher (Jim Merritt) last 9/19
Gray Flycatcher (David Tonnessen) first 9/19
Northern Mockingbird (Tonnessen) last 9/19
Palm Warbler (Hinds:Tonnessen) first 9/19
Scarlet Tanager (Robb Hinds) first 9/19
(all above: Headquarters, Pueblo County)
Least Flycatcher (Jim Merritt) first 9/19
Cassin's Vireo (Kim Geissler/Jim Merritt) (first 9/8) last 9/19
Townsend's Warbler (Kim Geissler) first 9/19
Dickcissel (Tonnessen) first 9/19
Magnolia Warbler (Kim Geissler) first 9/18
(above: banding station unless stated elsewhere, El Paso County)

Jefferson County
++++Johnson Park
American Three-toed Woodpecker (Laura Lippincott) reported 9/19
++++Golden Gate Canyon State Park
Sage Thrasher (Cynthia Madsen) first 9/18
++++Rocky Flats National Wildlife Refuge
Palm Warbler (Myron Gerhard) reported 9/17
++++Standley Lake
Sabine's Gull (Frank Farrell) first 9/17
++++Bear Creek Lake Park
Townsend's Warbler (2) --big soda lakes north trail (Robert Raker) first
9/17

Jefferson/Douglas County
++++Chatfield Reservoir
Eastern Phoebe --Deer Creek, north end of swim beach (Frank
Farrell:Cynthia Madsen) first 9/19
Parasitic Jaeger (1) (Myron Gerhard/John Stump & all) (first 9/8) last
9/18
Prothonotary Warbler --south end/north boat ramp (Myron Gerhard/Jean
Langel) (first 9/14) last 9/17

Larimer County
++++Horseshoe Lake
Mew Gull --pond north of lake (Nick Komar) first 9/19
++++Timnath Reservoir
Pectoral Sandpiper (Nick Komar) 4; last 9/19
Burrowing Owl (3) (Nick Komar) last 9/19
++++Greyrock Commons Trail
Nashville Warbler (Doug Swartz) first 9/19
++++Grandview Cemetery
Broad-winged Hawk (David Leatherman) first 9/19
American Redstart (Leatherman) first 9/19
Townsend's Warbler (David Wade/Leatherman) (first 9/16) last 9/19
++++Arapahoe Bend Natural Area (Rigden Reservoir)
Red-headed Woodpecker (Fawn Simonds/Lori Nixon) (first 9/18) last 9/19
++++CSU Environmental Learning Center
Townsend's Warbler (Tyler Wilson) first 9/18
Worm-eating Warbler (adult) --northeast section (Bruce Gill) first 9/17
++++Rocky Mountain National Park
Brown-capped Rosy Finch (6) --Alpine Visitor's Center (Sue Riffe) last
9/18
American Three-toed Woodpecker (5) --Trail Ridge Road (Sue Riffe) last
9/18
++++Near Rawhide Reservoir
Burrowing Owl --CR 5/north of Buckeye Road (Doyle/Jay Breidt) (first
4/27) 2; last 9/18
++++Horsetooth Reservoir
Lesser Black-backed Gull (2) (Scott Surner) first 9/17

Pueblo County
++++Pueblo Reservoir
Red-necked Phalarope (7) (Percival) first 9/19
Long-tailed Jaeger (juv) (Brandon Percival) (first 9/13) last 9/19
Parasitic Jaeger (Percival) reported 9/19
Common Tern (6) (Percival) first 9/19
Lesser Black-backed Gull (2) (Percival) (first 9/13) 1st year; last 9/19
Palm Warbler (western) --near Snakeskin Picnic area (Percival) first 9/19
++++Valco Ponds Wildlife Area
Green Heron (David Tonnessen) last 9/19

Weld County
++++Union Reservoir & area
Common Tern (Mlodinow/John Rutenbeck) (first 9/15) last 9/19
++++Pawnee National Grasslands area
Sage Thrasher --CR 96/east/CR 69 (Marcel Such) first 9/19
++++Crow Valley
Townsend's Warbler (Gene Rutherford/Josh Bruening) (first 9/17) last
9/18
Black-and-white Warbler (Gene Rutherford) first 9/17
Black-throated Gray Warbler (Gene Rutherford) first 9/17
Townsend's Warbler (Gene Rutherford) first 9/17
++++Eaton Cemetery
Gray Flycatcher (Shaun Mason) first 9/17
++++Windsor Lake
Common Tern (13) (Josh Bruening) reported 9/17

SOUTHEASTERN COLORADO

Kiowa County
++++Neenoshe Reservoir
Black-bellied Plover (3) (Suddjian) first 9/18
Semipalmated Plover (3) (Mlodinow) first 9/18
Red-necked Phalarope (2) (David Dowell/Mlodinow) (first 9/16) last 9/18
Cassin's Vireo (Mlodinow) first 9/18
Red Phalarope (Mlodinow) reported 9/18
++++Neegronda Reservoir
American Golden-Plover (2, flyover) (Steve Mlodinow) reported 9/18
Pectoral Sandpiper (7) (Mlodinow) first 9/18
Red-necked Phalarope (7) (Mlodinow) first 9/18
American Bittern (Mlodinow) first 9/18
Bonaparte's Gull (Mlodinow) first 9/18
Common Tern (Mlodinow) first 9/18
++++Upper Queens Reservoir
Marbled Godwit (Mlodinow) first 9/18
Common Tern (3) (Mlodinow) first 9/18
Broad-winged Hawk (Mlodinow) first 9/18
Barn Owl (Mlodinow) last 9/18
Magnolia Warbler (Mlodinow) first 9/18

Otero County
++++Lake Holbrook
Pectoral Sandpiper (3) (Dowell/Suddjian) (first 9/15) 2; last 9/19
Red-necked Phalarope (19) (Suddjian & all) (first 8/27) last 9/19
++++Horse Creek Reservoir
Long-billed Curlew (2) (Suddjian & all) first 9/17
Pectoral Sandpiper (Suddjian) first 9/17
Red-necked Phalarope (3) (Suddjian) first 9/17
Olive-sided Flycatcher (Suddjian) first 9/17
Sage Thrasher (Suddjian) first 9/17
Lark Bunting (4) (Suddjian) first 9/17
++++Rocky Ford Wildlife Area
Green Heron (David Suddjian) last 9/17

Prowers County
++++Lamar
Ruby-throated Hummingbird --S. 13th Street/W. Parkway Drive (Russell)
(first 9/16) 2 male, 1 female; last 9/19
++++North Gateway Park
Yellow-billed Cuckoo (David Suddjian) first 9/18
++++Lamar Community College
Chestnut-collared Longspur (Suddjian) first 9/18

NORTHEASTERN COLORADO

Logan County
++++Tamarack Ranch Wildlife Area
Eastern Screech-Owl (Stevens:Michaels) last 9/19
Yellow-billed Cuckoo (Stevens:Michaels) last 9/19
Red-headed Woodpecker (4) (Stevens:Michaels) last 9/19
Red-bellied Woodpecker (3) (Stevens:Michaels) last 9/19
Field Sparrow (Stevens:Michaels) last 9/19
Cassin's Vireo (Stevens:Michaels) last 9/19
Blue-headed Vireo (Stevens:Michaels) last 9/19
Nashville Warbler (Stevens:Michaels) last 9/19
Magnolia Warbler (Stevens:Michaels) last 9/19
Blackburnian Warbler (Stevens:Michaels) last 9/19
++++Red Lion Wildlife Area
Cassin's Kingbird (Stevens:Michaels) first 9/19
Nashville Warbler (Stevens:Michaels) first 9/19
(above: Little Jumbo Reservoir)

Logan/Sedgwick Counties
++++Jumbo Reservoir
Pectoral Sandpiper (15) (Bill Kaempfer/Stevens:Michaels) (first 9/13)
last 9/19
Common Tern (Stevens:Michaels) first 9/19

Logan/Washington Counties
++++Prewitt Reservoir area
Eastern Screech-Owl (Stevens) last 9/18
Red-necked Phalarope (2) (Doug Faulkner/Stevens) (first 8/21) 21; last
9/18
Common Tern (Bob Spencer/Stevens) (first 9/1) 1; last 9/18

Morgan County
++++Jackson Reservoir & area
Cassin's Vireo (Stevens) first 9/18
Red-eyed Vireo (Stevens) first 9/18
Blackpoll Warbler (Stevens) first 9/18
Townsend's Warbler (2) (Stevens) first 9/18
Long-eared Owl (Stevens) last 9/18

WESTERN COLORADO

Alamosa County
++++Blanca Wetlands See Pond
Marbled Godwit (2) (David Dowell) first 9/17
Red-necked Phalarope (8) (Dowell) first 9/17
Sage Thrasher (3) (Dowell) first 9/17
Pinyon Jay (3) (Dowell) first 9/17
++++San Luis Lakes State Park & Wildlife Area
Red-necked Phalarope (6) (Dowell) first 9/17

Clear Creek County
++++Mt. Evans Road
Barrow's Goldeneye (up to 11) --Echo Lake (Nathan Senner/Bob Harvey)
(first 5/2) 3; last 9/17
White-tailed Ptarmigan (2) --south/Summit Lake area
(Stevens:Michaels/Harvey) (first 5/30) last 9/17
Brown-capped Rosy Finch (3) --Summit Lake (Stevens:Michaels/Harvey)
(first 5/30) 2; last 9/17
American Three-toed Woodpecker --Echo Lake Campgrounds
(Stevens:Michaels/Harvey) (first 5/30) last 9/17

Eagle County
++++Walking Mountains Science Center, Avon
Cassin's Vireo (Aidan Goldie) first 9/18

Fremont County
++++Skyline Drive & Park
Curve-billed Thrasher (Jerry DeBoer) (first 6/16) last 9/19
++++County Road 21
Pinyon Jay (9) (Kay Hawklee) first 9/17

Grand County
++++Lake Granby Area
Marbled Godwit --Shadow Mountain National Recreation Area (Jean Davis)
first 9/17

Jackson County
++++County Road 22
Greater Sage-Grouse (18) (Kathy Carroll/Diane Persons) (first 9/18) last
9/19

La Plata County
++++Huck Finn Pond area & Animas River Trail
Lewis's Woodpecker (Ryan Votta) last 9/17

Mesa County
++++Connected Lakes State Park Area
Townsend's Warbler (Adam Cupito) first 9/19
++++Powderhorn Ski Area, Grand Mesa (Hwy 65)
Lewis's Woodpecker (Mike Henwood) first 9/19
Olive-sided Flycatcher (Mike Henwood) first 9/19
Cassin's Vireo (Mike Henwood) first 9/19
Pinyon Jay (35) (Mike Henwood) first 9/19
++++Horsethief Canyon Wildlife Area
Cassin's Vireo (Douglas Diekman) first 9/18
Black Phoebe (Ronda Woodward) last 9/16

Montezuma County
++++Totten Reservoir
Red-necked Grebe (adult, basic) --northeast section (Jim Beatty/Erik
Hendrickson) (first 9/15) last 9/16

Ouray County
++++Ouray and Box Canyon Falls
Black Swift (up to 7) (Niler Pyeatt/Joe Hanfman) (first 5/31) 1; last 9/12

Park County
++++Eleven Mile State Park
Sabine's Gull (David Tonnessen) first 9/17
Chestnut-collared Longspur (David Tonnessen) first 9/17

San Juan County
++++County Road 2 (Silverton to Eureka)
American Three-toed Woodpecker (3) (Doug Kibbe:Mackenzie Goldthwait)
first 9/17

Good Birding!

Directions to birding spots and s on CoBus website:
http://coloradobirdingsociety.net

Amy Davenport, Secretary, Colorado Birding Society Denver, CO
Contact CoBus/Report Interesting Birds: 303-324-7994
Subscribe to "cobirders" by sending blank email to:
cobirders-subscribe AT yahoogroups.com
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