Date: 9/29/18 4:26 am
From: Amy Davenport <cobussec...> [cobirders] <cobirders-noreply...>
Subject: [cobirders] Colorado Rare Bird Alert for September 29, 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:

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: 9/28/2018
Adams (Cassin's Vireo)
Boulder (Pectoral Sandpiper)
Custer (Magnolia Warbler)
Denver (Red-headed Woodpecker, Wood Thrush, Ash-throated Flycatcher)
Fremont (Eastern Phoebe, Sage Thrasher)
Jefferson (Broad-winged Hawk)
Jefferson/Douglas (Nashville Warbler, Townsend's Warbler)
La Plata (Pectoral Sandpiper)
Larimer (Pectoral Sandpiper, Black-bellied Plover, Long-eared Owl,
Broad-winged Hawk)
Logan/Washington (Lesser Black-backed Gull, White-throated Sparrow)
Mesa (Williamson's Sapsucker, Pinyon Jay)
Moffat (Nashville Warbler)
Pitkin (Townsend's Warbler)
San Miguel (Nashville Warbler)
Teller (Townsend's Warbler)
Weld (Broad-winged Hawk)
Yuma (Sprague's Pipit, Nashville Warbler, Red-bellied Woodpecker,
Red-headed Woodpecker, Eastern Bluebird, Blue-headed Vireo)


Adams County
++++Barr Lake
Cassin's Vireo (Joe Chen) last 9/28
White-throated Sparrow (McBurney) first 9/27
Semipalmated Plover (1) (Adam Vesely) first 9/26
Pectoral Sandpiper --off banding station (Dave King) last 9/26

Adams/Denver Counties
++++First Creek Trail (all in Denver Cty)
Red-headed Woodpecker (juvenile) (Jeff Dawson) first 9/28
Wood Thrush --creek/5 yards east of Buckley Rd (Dave King) first 9/28
Ash-throated Flycatcher --40 yds/east/light rail (Dave King) first 9/28

Arapahoe County
++++Centennial Park
Rusty Blackbird (5) (Edward Donnan) first 9/27

Boulder County
++++Walden Ponds
Pectoral Sandpiper (Pheneger:Zmolek/Peter Burke) (first 9/24) 2; last
++++Pleasant View Marsh
Red-eyed Vireo (Bill Kaempfer/Christian Nunes:Peter Burke) (first 9/24)
last 9/27
Prothonotary Warbler (Ernest Crvich/Peter Burke) (first 9/22) last 9/27
Townsend's Warbler (Christian Nunes/Ernest Crvich) (first 9/23) last 9/27

El Paso County
++++Sinton Pond Open Space
Cassin's Vireo (Terence Berger) first 9/27
++++Paint Mines Interpretive Park
Northern Mockingbird (2) (John Bruder) first 9/27
Lark Bunting (5) (John Bruder) first 9/27
++++Hanover Road and area
Burrowing Owl (4) (Debbie Segal/Richard Bunn) (first 7/23) 1; last 9/27

El Paso/Pueblo Counties County
++++Chico Basin Ranch (fee area)
Red Phalarope --tank pond (Percival:Maynard/Richard Bunn) (first 9/26)
last 9/27
Sage Thrasher --Bell Grove (Bunn) 7; last 9/27
Cassin's Vireo --Bell Grove (Kim Geissler/Bunn) (first 9/8) last 9/27
Curve-billed Thrasher --Bell Grove (Bunn) last 9/27
Northern Mockingbird (Jim Merritt) last 9/27
Chestnut-collared Longspur (Drummond/Bunn) (first 9/26) 9; last 9/27
(above: banding station unless stated elsewhere, El Paso County)
Eastern Phoebe (John Drummond) first 9/26
Sedge Wren (John Drummond/Joel & Dale Adams) (first 9/24) last 9/26
(above: Headquarters, Pueblo County)

Huerfano County
++++Orlando Reservoir #2
Sage Thrasher (2) (Walker) first 9/25
White-throated Sparrow (Christian Walker) first 9/25

Jefferson County
++++Lee Gulch Trail
Broad-winged Hawk --Eltai Street to Horseshoe Park (David Suddjian) first
++++Standley Lake
Semipalmated Plover (David Chernack) first 9/27
Common Tern (David Chenack) (first 9/20) 2; last 9/27
++++Wheat Ridge Greenbelt (Prospect Park)
Blackpoll Warbler (Kevin DeBoer) first 9/27
++++O'Fallon Park
Broad-winged Hawk (Bruce Cyganowski) first 9/26

Jefferson/Douglas County
++++Chatfield Reservoir
(NOTE: see directions on construction updates)
Nashville Warbler --north/Audubon Center Trails (Terry Michaels) first
Townsend's Warbler --north/Audubon Center trails (Terry Michaels) first

Larimer County
++++Timnath Reservoir
Pectoral Sandpiper (Nick Komar) 5; last 9/28
++++Wellington Wildlife Area, Cobb Lake
Black-bellied Plover (3) (Andy Bankert) first 9/28
Long-eared Owl (Bankert) last 9/28
++++Fort Collins
Broad-winged Hawk (Nick Komar) first 9/28
(Pleasant Valley & Lake Canal greenbelt at W Lake Street)
++++Grandview Cemetery
Townsend's Warbler (David Wade/John Shenot) (first 9/16) last 9/26
White-throated Sparrow (1st winter) (Leatherman) first 9/25
++++Greyrock Commons Trail
White-throated Sparrow (Doug Swartz) first 9/26

Las Animas County
++++Trinidad State Park
Williamson's Sapsucker --Campgrounds (Thomas Brown) (first 9/26) last 9/27
Sage Thrasher --Watchable Wildlife Trail (Walker/Thomas Brown) (first
9/26) last 9/27
Chestnut-collared Longspur (2) --Wildlife trail (Thomas Brown) first 9/27
Cassin's Kingbird (4) (Christian Walker) first 9/26
Dickcissel (Walker) first 9/26

Weld County
++++Norma's Grove (CR 100/east/CR 57)
Broad-winged Hawk (Dean Shoup) first 9/28


Bent County
++++John Martin Reservoir
Common Tern (6) --Clayton's Point (Jane Stulp) first 9/26
Buff-breasted Sandpiper (2) --Clayton Point (Duane Nelson) first 9/25
(East of CR 20, turn south off CR JJ, go south then east to gravel island)

Cheyenne County
++++Big Sandy Creek at CR 20
Cassin's Kingbird (2) (David Suddjian) first 9/25
++++County Road 48 at CR DD
Cassin's Kingbird (Suddjian) first 9/25

Prowers County
++++North Gateway Park
Tundra Swan --Arkansas River/Hwy 50 (Jane Stulp) last 9/27


Logan County
++++Duck Creek Wildlife Area
Red-bellied Woodpecker (Stevens) last 9/27
Blue-headed Vireo (Stevens) first 9/27
++++Tamarack Ranch Wildlife Area
Eastern Screech-Owl (2 locations, east & west) (Stevens) last 9/26
Red-bellied Woodpecker (5) (Stevens) last 9/26
Red-headed Woodpecker (2) (Stevens) last 9/26
Yellow-billed Cuckoo (Stevens) last 9/26
(ties for fifth latest date, three October sightings)
Field Sparrow (Stevens) last 9/26
Blue-headed Vireo (Stevens) last 9/26
Nashville Warbler (Stevens) last 9/26
++++North Sterling Reservoir and Area
Sabine's Gull (David Dowell/Stevens) (first 9/22) last 9/25

Logan/Washington Counties
++++Prewitt Reservoir area
Lesser Black-backed Gull Joey Kellner:Dean Shoup) first 9/28
White-throated Sparrow (Shoup) first 9/28
Common Tern (2) (Norm Lewis) first 9/26

Morgan County
++++Jackson Reservoir & area
Northern Mockingbird (Norm Lewis) last 9/26
Long-eared Owl (Stevens) last 9/25
Townsend's Warbler --west Campgrounds (Stevens) first 9/25

Sedgwick County
++++Sedgwick Draw
Short-eared Owl (Richard Stevens) first 9/27
Eastern Screech-Owl (Stevens) first 9/27
Tennessee Warbler (Stevens) first 9/27
++++Sedgwick Cemetery
Red-bellied Woodpecker (Stevens) first 9/27
++++Sedgwick Bar Wildlife Area
Red-bellied Woodpecker (Stevens:Michaels/Stevens) (first 9/20) last 9/27
Eastern Bluebird (2) (Stevens) last 9/27

Yuma County
++++Bonny Reservoir Area
Sprague's Pipit --Pipit Hill (Richard Stevens) first 9/28
Nashville Warbler (Stevens:Michaels/Stevens) (first 9/22) last 9/28
Broad-winged Hawk --wagon wheel (Suddjian & all) first 9/26
Burrowing Owl (2) --Pipit Hill (David Dowell/Suddjian) (first 9/23) last
(Bonny Reservoir Wildlife Area)
Red-bellied Woodpecker (2) (Stevens) last 9/28
Red-headed Woodpecker (2) (Stevens) last 9/28
Eastern Bluebird (12+) (Stevens) last 9/28
Blue-headed Vireo (Stevens) first 9/28
Red-headed Woodpecker (Stevens) last 9/28
Red-bellied Woodpecker (2) (Stevens) last 9/28
(Hale Ponds)


Alamosa County
++++San Luis Lakes State Park
Black-bellied Plover (5) (Stump:Rawinski) first 9/27
Semipalmated Plover (Stump:Rawinski) first 9/27

Archuleta County
++++Navajo Reservoir
Sage Thrasher (3) (James Beatty) first 9/27
Sagebrush Sparrow (James Beatty) first 9/27

Clear Creek County
++++Mt. Evans Road
Barrow's Goldeneye (up to 11) --Echo Lake (Nathan Senner/Alec McDonell)
(first 5/2) 5; last 9/26
++++Guanella Pass
White-tailed Ptarmigan --Bierstadt trail (Frank Farrell) 6; last 9/23

Costilla County
++++Smith Reservoir
Sabine's Gull (juv) (Rawinski/John Stump:John Stump) (first 9/26) last

Custer County
++++DeWeese Reservoir
Magnolia Warbler (Rich Miller) reported 9/28

Fremont County
++++Arkansas Riverwalk
Eastern Phoebe --Sells Pond to Raynolds Avenue (Catherine Olin) last 9/28
Black Phoebe --Sells Pond to Raynolds Avenue (Jerry DeBoer) last 9/25
++++Brush Hollow Wildlife Area
Sage Thrasher (Cathy Sheeter) last 9/28

Hinsdale County
++++Lake San Cristobal
Sage Thrasher (Gary Koehn) first 9/27

Jackson County
++++Arapaho National Wildlife Refuge & Area
Burrowing Owl (2) (Nick Komar) first 9/27

La Plata County
++++Pastorius Reservoir
Pectoral Sandpiper (Susan Allerton/David Dunford) (first 9/27) last 9/28

++++Huck Finn Pond area & Animas River Trail
Black Phoebe --Pond & Hatchery (Kristi Dranginis) last 9/26

Mesa County
++++16.5 Road on Pinyon Mesa
Williamson's Sapsucker (David Price) first 9/28
Pinyon Jay (20) (David Price) first 9/28
++++Horsethief Canyon Wildlife Area
Black Phoebe (Mike Henwood) last 9/27

Moffat County
++++Loudy Simpson Nature Trail
Nashville Warbler (Jan Leonard) last 9/28

Montezuma County
++++Denny Lake
Sage Thrasher (Erik Hendrickson) first 9/27

Montrose County
++++Baldridge & Ute Parks
Black Phoebe (Janet Haw) first 9/26
++++Airport Lake Area
Black Phoebe --Rose Garden (Horn:Harris/Dexter:Wright) (first 7/13) last
Sage Thrasher (Dexter:Wright) last 9/26
Sagebrush Sparrow (6) --Rose Garden (Dexter:Wright) (first 9/25) last 9/26
++++Bostwick Park Road
Pinyon Jay (21) (Betty Fenton) first 9/26

Park County
++++Antero Reservoir
Red-necked Phalarope (Steve Mlodinow) first 9/25
Sabine's Gull (2) (Mlodinow) first 9/25
++++Eleven Mile State Park
Sabine's Gull (David Tonnessen/Mlodinow) (first 9/17) last 9/25
Common Tern (13) (Mlodinow) first 9/25
++++Spinney Mountain
Semipalmated Plover (6) (Mlodinow) first 9/25
Common Tern (Mlodinow) first 9/25
Chestnut-collared Longspur (Mlodinow) first 9/25
Yellow-throated Warbler --see map (Mlodinow) reported 9/25

Pitkin County
++++Woody Creek Trail at Lenado
Townsend's Warbler (Catherine Hagen) first 9/28
++++County Road 111
Pinyon Jay (11) (Donald Pendleton) first 9/26

San Miguel County
Nashville Warbler (Steele) (first 9/24) last 9/28

Teller County
++++Manitou Lake
Townsend's Warbler (Richard Bunn) first 9/28

Good Birding!

Directions to birding spots and s on CoBus website:

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