Date: August 25, 2018
Compiler: Joyce Takamine
e-mail: RBA AT cobirds.org
This is the Rare Bird Alert for Saturday, August 25 sponsored by Denver Field Ornithologists and the Bird Conservancy of the Rockies.
Note that the RBA is using the new AOU checklist.
Rare and out of range species for the last seven days include: (*indicates new information on this species)
Greater White-fronted Goose (Larimer)
Cackling Goose (*Summit)
Trumpeter Swan (Archuleta)
Tundra Swan (Prowers)
Wood Duck (Gunnison)
Northern Pintail (San Miguel)
Redhead (Douglas)
Bufflehead (Boulder)
Common Goldeneye (Chaffee)
Barrow's Goldeneye (Clear Creek)
Hooded Merganser (Adams, Arapahoe)
White-winged Dove (El Paso)
Greater Roadrunner (Otero)
White-throated Swift (Kiowa)
Sandhill Crane (Montrose)
Semipalmated Plover (Kiowa)
Piping Plover (Jackson)
Upland Sandpiper (Kiowa, Otero)
Long-billed Curlew (Kiowa, Washington)
Marbled Godwit (Larimer, Washington)
RED KNOT (Washington)
Stilt Sandpiper (Jackson, Washington, Weld)
Sanderling (Washington)
Dunlin (Jackson)
Baird's Sandpiper (San Miguel)
White-rumped Sandpiper (Prowers)
Buff-breasted Sandpiper (Washington)
Pectoral Sandpiper (Jackson, Washington)
Semipalmated Sandpiper (Jackson)
Western Sandpiper (Arapahoe)
Solitary Sandpiper (*El Paso, Gunnison)
Lesser Yellowlegs (Weld)
Willet (La Plata)
Greater Yellowlegs (Montrose, Weld)
Red-necked Phalarope (Jefferson)
Mew Gull (Arapahoe)
Herring Gull (Washington)
Lesser Black-backed Gull (Kiowa, *Larimer, Weld)
Caspian Tern (Jackson, *Larimer)
Black Tern (Adams, Washington)
Common Tern (Larimer, Washington)
NEOTROPIC CORMORANT (Kiowa)
American Bittern (*Saguache)
Great Egret (*Saguache, San Miguel)
Snowy Egret (*Saguache)
Cattle Egret (*Saguache)
Black-crowned Night-Heron (Montezuma)
YELLOW-CROWNED NIGHT-HERON (*Yuma)
White-faced Ibis (*Huerfano, *Routt)
Mississippi Kite (Otero)
Northern Goshawk
Lewis's Woodpecker (Archuleta, Ouray)
Red-headed Woodpecker (Kit Carson, Logan, Otero, Pueblo, Washington, *Yuma)
Red-bellied Woodpecker (Logan)
Williamson's Sapsucker (*Custer)
Ladder-backed Woodpecker (Otero, Pueblo)
Hairy Woodpecker (Kiowa, Washington)
American Three-toed Woodpecker (El Paso, Mesa)
Merlin (Washington)
Olive-sided Flycatcher (Pueblo)
YELLOW-BELLIED FLYCATCHER (Kit Carson)
Willow Flycatcher (*El Paso, Pueblo)
Least Flycatcher (Boulder, *El Paso, Jefferson, Kit Carson, Pueblo)
Gray Flycatcher (*Broomfield, El Paso, *Larimer)
Dusky Flycatcher (El Paso, Otero, Pueblo)
Cordilleran Flycatcher (Mesa)
Black Phoebe (Mesa)
Eastern Phoebe (*Custer, Jefferson, Otero)
Vermilion Flycatcher (Otero)
Great Crested Flycatcher (*Yuma)
Cassin's Kingbird (Otero)
Eastern Kingbird (La Plata, Ouray, Pitkin, San Miguel)
Cassin's Vireo (*El Paso, Kiowa, Pueblo)
Philadelphia Vireo (Kit Carson)
Warbling Vireo (Eastern) (Kit Carson)
Red-eyed Vireo (*La Plata, *Larimer)
Pinyon Jay (*Custer)
Woodhouse's Scrub-Jay (Denver, La Plata, *Larimer, Mesa, Otero)
Chihuahuan Raven (Otero)
Purple Martin (*Saguache)
Mountain Chickadee (El Paso)
Bushtit (*Adams, *El Paso, *Huerfano)
Rock Wren (Conejos)
Marsh Wren (Arapahoe, *Saguache, Weld)
Blue-gray Gnatcatcher (*Custer, *Larimer, Mesa, Otero, Pueblo, San Juan)
Eastern Bluebird (Otero)
Curve-billed Thrasher (*El Paso, Kiowa, Otero, Pueblo)
Northern Mockingbird (Moffat)
Red Crossbill (*Custer, Larimer)
Pine Siskin (Arapahoe)
McCown's Longspur (Jackson)
Rufous-crowned Sparrow (Otero)
Clay-colored Sparrow (Chaffee, *Custer, Moffat, Otero, *Saguache, *Yuma)
Field Sparrow (*Yuma)
Black-throated Sparrow (Otero)
Sagebrush Sparrow (Conejos)
Lark Bunting (Alamosa, Jackson, Routt)
EASTERN MEADOWLARK (Logan)
Baltimore Oriole (Prowers)
Northern Waterthrush (*El Paso, Jackson, Moffat)
Black-and-white Warbler (Jefferson, Mesa, Pueblo)
Prothonotary Warbler (Chaffee)
Orange-crowned Warbler (*Custer)
Virginia's Warbler (Park, San Juan)
American Redstart (El Paso)
Chestnut-sided Warbler (Weld)
Black-throated Gray Warbler (*El Paso)
Townsend's Warbler (Moffat, Pueblo)
Hepatic Tanager (Otero)
Summer Tanager (Otero, San Juan)
Northern Cardinal (Logan, *Yuma)
Blue Grosbeak (Moffat)
Indigo Bunting (Kiowa, Otero)
Painted Bunting (Otero)
Dickcissel (Logan)
ADAMS COUNTY:
---On August 19 at Barr Lake SP, Holden Maxfield reported 2 f-type Hooded Mergansers; at the boat ramp, Adam Veseley, Riley and Heather Morris reported 8 f-type Common Mergansers and Black Tern.
---On August 24 at Lowell Ponds (Clear Creek Valley Park), Tyler Wilson reported 9 Bushtits.
ALAMOSA COUNTY:
---On August 19 at Twomile Road, Jeff Guy reported Lark Bunting.
ARAPAHOE COUNTY:
---On August 19 at Cherry Creek SP Marina and Dam Trail, Dean Shoup, Mark Chavez, Roger Massey, Cynthia Madsen and David Hill reported imm Mew Gull. On August 20 at Cherry Creek SP, Tim Ryan reported imm Mew Gull.
---On August 20 at Cherry Creek State Park, Cynthia Madsen reported Hooded Merganser.
---On August 21 at Cherry Creek SP, Pelican Point area, Ben Sampson reported Western Sandpipers.
---On August 22 at S Platte River—Northern Wildlife Area to West Bowles Aves, Brian Johnson reported f Hooded Merganser.
---On August 23 at Littleton Cemetery, David Suddjian reported 4 Pine Siskin.
ARCHULETA COUNTY:
---On August 23 in Pagosa Springs, Ben Bailey reported Trumpeter Swan and 2 Lewis's Woodpeckers.
BOULDER COUNTY:
---On August 19 at Coal Creek Canyon OS, Diane Roberts reported Least Flycatcher; Diane Roberts and Sandra Blair reported Black-and-white Warbler and Eastern Phoebe.
---On August 21 at Little Gaynor Lake in Boulder, Dean Shoup reported Bufflehead.
BROOMFIELD COUNTY:
---On August 22 at W 134th Place, Matt Hofeditz reported Gray Flycatcher. On August 24 at W 134th Place (Neighborhood), Matt Hofeditz reported Gray Flycatcher.
CHAFFEE COUNTY:
---On August 23 at 7410 CR 150 in Salida, Diane Roberts reported 3 Clay-colored Sparrows.
---On August 23 at Sands Lake SWA, Rebecca Laroche and DFO field trip reported Common Goldeneye and Prothonotary Warbler.
CLEAR CREEK COUNTY:
---On August 20 at Echo Lake, Phil Lyon reported 8 Barrow's Goldeneye (1 ad f, 7 young)
CONEJOS COUNTY:
---On August 22 at Sego Springs SWA, east of Manassa, John Rawinski reported 6 Sagebrush Sparrows and Rock Wrens.
CUSTER COUNTY:
---On August 24 at DeWeese Reservoir, David Tonnessen reported Williamson's Sapsucker, Eastern Phoebe, 45 Pinyon Jay, 4 Blue-gray Gnatcatcher, 2 Red Crossbills, Clay-colored Sparrow, Orange-crowned (Gray-headed) Warbler.
DENVER COUNTY:
---On August 21 at Two Cats on Vine, Judith Henderson reported Woodhouse's Scrub-Jay.
DOUGLAS COUNTY:
---On August 21 at Platte Canyon Reservoir, Nancy Davis reported Redhead.
EL PASO COUNTY:
---On August 19 at Clear Spring Ranch, Steve Brown band another Northern Waterthrush and observed a White-winged Dove. On August 22 at Clear Spring Ranch, Steve Brown banded American Redstart (juv m) and Least Flycatcher (ad f). On August 24 at Clear Spring Ranch, Steve Brown 2 ad Northern Waterthrush.
---On August 19 at Chico Basin Ranch Bell Grove, Matt Rodgers reported 2 Curve-billed Thrashers.
---On August 19 on Mt Herman Trail, Chris Hiatt reported Northern Goshawk and American Three-toed Woodpecker.
---On August 19 at Sinton Pond OS, David Tonnessen reported Cassin's Vireo.
---On August 20 at Aiken Canyon Preserve, Terence Berger reported American Three-toed Woodpecker, Cassin's Vireo, and 4 Blue-gray Gnatcatchers.
---On August 22 at Kison Meadows Court, David Tonnessen reported 2 Mountain Chickadees.
---On August 23 at Chico Basin Ranch, John Drummond reported Willow Flycatcher, Gray Flycatcher, Dusky Flycatcher, and Curve-billed Thrasher. On August 24 at Chico Basin Ranch, Alan Ketcham reported Willow Flycatcher, Least Flycatcher, Cassin's Vireo, Curve-billed Thrasher.
---On August 24 at Sinton Pond OS, David Tonnessen reported 4 Bushtits.
---On August 24 Birdsall Road, Terence Berger reported 2 Solitary Sandpiper and Curve-billed Thrasher.
GUNNISON COUNTY:
---On August 23 at McCabes Lane Wetland, Ben Hulsey reported 2 Wood Ducks, 2 Solitary Sandpipers.
HUERFANO COUNTY:
---On August 24 at Lathrop SP Lake Oehm, Brent Thompson reported 14 White-faced Ibis, and 2 Bushstit.
JACKSON COUNTY:
---On August 19 at Walden Reservoir, Steve Mlodinow reported Caspian Tern, Stilt Sandpiper, Great Egret, and 4 Lark Bunting.
---On August 16 at Arapaho NWR Auto Loop, Henrey Deese reported Lark Bunting. On August 19 at Arapahoe NWR Auto Loop, Steve Mlodinow reported Dunlin, 2 Stilt Sandpipers, 5 Semipalmated Sandpipers, 7 Pectoral Sandpipers and Lark Bunting.
---On August 19 at Rand Road Wetland, Steve Mlodinow reported McCown's Longspur.
---On August 19 at 18 Island Reservoir, Steve Mlodinow reported Piping Plover, Semipalmated Sandpiper.
---On August 19 in Rand (town), Steve Mlodinow reported 6 Northern Waterthrush.
JEFFERSON COUNTY:
---On August 19 at Cold Creek OS, Cynthia Kristensen reported 2 Eastern Phoebe. On August 19 at Coal Creek Canyon OS, Diane Roberts reported Least Flycatcher; Diane Roberts and Sandra Blair reported Black-and-white Warbler and Eastern Phoebe.
---On August 21 at Newton Park in Conifer, Myron Gerhard and Mark Chavez reported 3 Red Crossbills and Black-and-white Warbler.
---On August 23 at Bear Creek Lake Park, Reed Gorner reported 2 Red-necked Phalarope.
KIOWA COUNTY:
---On August 20 at Neenoshe Reservoir, David Tonnessen and Jim Merrit reported Semipalmated Plover, Long-billed Curlew, Lesser Black-backed Gull, Hairy Woodpecker (eastern), Cassin's Vireo, 2 Curve-billed Thrashers, Indigo Bunting, Upland Sandpiper and 2 NEOTROPIC CORMORANTS. On August 21 at Neenoshe Reservoir, Kathy Mihm Dunning and Tony Leukering reported Lesser Black-backed Gull.
KIT CARSON COUNTY:
---On August 22 at Flager Reservoir SWA below dam, Norm Erthal reported Philadelphia Vireo, Red-headed Woodpecker, and Least Flycatcher; David Tonnessen reported 2 Red-headed Woodpeckers, 2 Least Flycatchers, and Eastern Warbling Vireo; Glenn Walbek reported YELLOW-BELLIED FLYCATCHER. On August 23 at Flager Reservoir SWA below dam, Glenn Walbek reported ad YELLOW-BELLIED FLYCATCHER.
LA PLATA COUNTY:
---On August 21 at Pastorius Reservoir, David Dunford and Susan Allerton reported Willet and 3 Woodhouses's Scrub-Jay.
---On August 21 on River Trail behind high school in Durango, Ryan Votta reported Eastern Kingbird.
---On August 24 Animas River Huck Finn Pond and Hatchery Area, Riley Morris reported Red-eyed Vireo.
LARIMER COUNTY:
---On August 19 at Timnath Reservoir, Nick Komar, Nick jr, and Walter Wehtje reported Greater White-fronted Goose, 2 Common Tern, and Caspian Tern. On August 22 at Timnath Reservoir, Josh Bruening reported 5 Caspian Terns; Nick Komar and Nick Jr, reported Greater White-fronted Goose, Marbled Godwit, 2 Lesser Black-backed Gulls (1 ad, 1 2nd-cyc), and 2 Caspian Terns.
---On August 20 at Red Feather Lakes, Joel Adams reported 3 Red Crossbill.
---On August 22 at Kilpecker Trail, Joel Adams reported 2 Red Crossbill.
---On August 24 at Bobcat Ridge NA, Denise Bretting reported 3 Woodhouse's Scrub-Jay, 5 Blue-gray Gnatcatcher, and Gray Flycatcher.
---On August 24 at Arapaho Bend NA Rigden Reservoir (Strauss Cabin Lake), David Wade reported Red-eyed Vireo.
LOGAN COUNTY:
---On August 19 at Tamarack Ranch SWA, Chuck Hundertmark and DFO field trip reported 3 EASTERN MEADOWLARK, 10 Red-headed Woodpeckers, Red-bellied Woodpecker, 3 Northern Cardinals, and 4 Dickcissel.
MESA COUNTY:
---On August 19 at Grand Junction WA, Drew Kelley reported Black-and-white Warbler.
---On August 20 at Flowing Park Reservoir Area, Mike Henwood reported 2 American Three-toed Woodpeckers.
---On August 22 at Horsethief Canyon SWA, Mike Henwood reported 2 Cordilleran Flycatchers, Black Phoebe, Woodhouse's Scrub-Jay and 12 Blue-gray Gnatcatchers.
MOFFAT COUNTY:
---On August 19 at Loudy-Simpson Nature Trail, Jan Leonard reported Northern Mockingbird and Townsend's Warbler. On August 18 at Loudy-Simpson, Forrest Luke reported Clay-colored Sparrow and Northern Waterthrush. On August 20 at Loudy-Simpson, Forrest Luke reported pair of Townsend's Warblers and Blue Grosbeak.
MONTROSE COUNTY:
---On August 20 on Nucla Avenue Five, Coen Dexter and Brenda Wright reported Sandhill Crane.
---On August 20 at Redv ale Pond, Coen Dexter and Brenda Wright reported Greater Yellowlegs.
OTERO COUNTY:
---On August 19 at Higbee Valley Road (CR 804), Chris Gilbert reported 2 Eastern Bluebirds, 4 Black-throated Sparrows, 3 Greater Roadrunners, 5 Red-headed Woodpecker, 4 Ladder-backed Woodpeckers, and 2 Curve-billed Thrashers. On August 20, Pablo Quezada, Jim Merritt, and David Tonnessen reported 7 Greater Roadrunner, 2 Mississippi Kites, 7 Red-headed Woodpecker, 3 Ladder-backed Woodpeckers, Dusky Flycatcher, Cassin's Kingbird, 3 Woodhouse's Scrub-Jay, 3 Chihuahuan Raven, 3 Eastern Bluebirds, Curve-billed Thrasher, 5 Black-throated Sparrow, 5 Rufous-crowned Sparrows, 2 Summer Tanagers, and Indigo Bunting. On August 21 at Higbee Valley Road at Vogel Canyon, Kathy Mihm Dunning, Scott Somershoe, and Tony Leukering reported 3 Greater Roadrunner, 2 Upland Sandpipers (flyover), 11 Red-headed Woodpecker, Ladder-backed Woodpecker, 5 Eastern Phoebe, pair of Vermilion Flycatcher, Blue-gray Gnatcatcher, 5 Eastern Bluebirds, 2 Rufous-crowned Sparrows, and f-type Summer Tanager. On August 23 at Higbee Valley Road (CR 804), Tyler Stewart reported Greater Roadrunner, 6 Red-headed Woodpecker, Ladder-backed Woodpecker, Vermilion Flycatchers (m, f, 1-2 juv), 2 Chihuahuan Ravens, Curve-billed Thrasher, Black-throated Sparrow, 2 Rufous-crowned Sparrows.
---On August 20 at Vogel Canyon, Pablo Quezada and David Tonnessen reported Ladder-backed Woodpecker and Blue-gray Gnatcatcher.
OURAY COUNTY:
---On August 19 on Uncompahgre River at Buckhorn Rd, Betty Fenton reported 3 Eastern Kingbirds.
---On August 20 at Elk Meadows (Miller Mesa), Magda Sokolowski reported Lewis's Woodpecker.
PARK COUNTY:
---On August 23 on 13959 – 14144 S Wandcrest Drive in Pine, Diane Roberts reported Virginia's Warbler.
PITKIN COUNTY:
---On August 23 at Aspen Center for Environmental Studies, Catherine Hagen reported Eastern Kingbird.
PROWERS COUNTY:
---On August 20 in Lamar on S 13th St., Dorothy Russell reported Baltimore Oriole.
---On August 23 at Arkansas River and US 50 crossing, Jane Stulp reported Tundra Swan and White-rumped Sandpiper.
PUEBLO COUNTY:
---On August 23 at Chico Basin Ranch, John Drummond reported 2 Red-headed Woodpeckers, Ladder-backed Woodpecker, Olive-sided Flycatcher, Willow Flycatcher, Least Flycatcher, Dusky Flycatcher, Cassin's Vireo, 2 Blue-gray Gnatcatchers, Black-and-white Warbler (ad f), Townsend's Warbler (ad m).
ROUTT COUNTY:
---On August 19 at 41850 – 42156 CR 44A in Steamboat Springs, Katie Weeks reported 2 Lark Bunting.
---On August 24 at 4559 – 4921 Hwy 40, Michael San Miguel reported 2 White-faced Ibis.
SAGUACHE COUNTY:
---On August 24 Russell Lakes SWA, Rachel Laroche and DFO field trip reported 3 American Bittern, 2 Great Egret, 3 Snowy Egret, 7 Cattle egret, Purple Martin, 7 Marsh Wren, and 4 Clay-colored Sparrow.
SAN JUAN COUNTY:
---On August 20 in Silverton, Lori Nixon reported Summer Tanager and Blue-gray Gnatcatcher. On August 23 in Silverton, Lori Nixon reported Virginia's Warbler.
SAN MIGUEL COUNTY:
---On August 20 at Miramonte Reservoir, Coen Dexter, Brenda Wright, and Eric Hynes reported 4 Baird's Sandpipers, 2 Lewis's Woodpeckers, and 4 Northern Pintail.
---On August 20 at Snyder's Pond, Coen Dexter and Brenda Wright reported Baird's Sandpiper.
---On August 21 on Summit St in Norwood, Coen Dexter reported 2 Eastern Kingbird.
---On August 22 at Trout Lake, Eric Hynes reported Great Egret. On August 23 at Trout Lake, George Steele reported Great Egret.
SUMMIT COUNTY:
---On August 24 Lake Dillon Soda Creek Inlet, Bea Weaver reported Cackling Goose.
WASHINGTON COUNTY:
---On August 21 at Prewitt Reservoir – Inlet Canal, Doug Faulkner reported Marbled Godwit, 8 Stilt Sandpipers, 8 Sanderling, Buff-breasted Sandpiper, 16 Pectoral Sandpipers, and 17 Black Tern. On August 22 Norm Erthal reported Marbled Godwit, 5 Stilt Sandpipers, 3 Sanderling, 8 Pectoral Sandpipers, 8 Black Tern and juv Red Knot; David Suddjian and his DFO field trip reported Red Knot, Marbled Godwit, 12 Stilt Sandpipers, 6 Sanderling, 14 Pectoral Sandpipers, Herring Gull, 12 Black Tern, Red-headed Woodpecker, and 2 Hairy Woodpeckers. On August 23 at Prewitt Reservoir, John Vanderpoel reported Long-billed Curlew, Marbled Godwit, Stilt Sandpiper, Black Tern, Common Tern and Merlin; Chuck Hundertmark reported Long-billed Curlew and 3 Pectoral Sandpipers.
WELD COUNTY:
---On August 21 at Union Reservoir, Steve Mlodinow reported 10 Marsh Wren.
---On August 21 at Loloff Reservoir, Gwen Moore reported Stilit Sandpiper, Greater Yellowlegs, and Lesser Yellowlegs.
---On August 21 at Crow Valley CG, Amy Darling reported Chestnut-sided Warbler.
YUMA COUNTY:
---On August 24 at Stalker Lake w of Wray, Joey Kellner and Kathy Mihm Dunning reported 2 YELLOW-CROWNED NIGHT-HERONS, 3 Red-headed Woodpecker, Great Crested Flycatcher, Clay-colored Sparrow, Field Sparrow, 3 Northern Cardinal.
DFO Field Trips
See DFO website for more information:
Rocky Mountain Arsenal NWR
Saturday, August 25
7:00 AM – 12:00 PM
Candice Johnson (candice.johnson AT childrenscolorado.org; 303-329-8131)
Prewitt and Jackson Reservoirs
Sunday, August 26
5:30 AM – 6:00 PM
Joey Kellner (vireo1 AT comcast.net; 303-978-1748)
High Line Canal Trail – West Arapahoe County
Sunday, August 26
6:00 AM – 11:00 AM
Jared Del Rosso (Jared.delrosso AT gmail.com; 617-275-6252)
Good Birding,
Joyce Takamine
Boulder
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