Date: 4/28/18 3:39 am
From: Joyce Takamine <jabirujt...>
Subject: [cobirds] Colorado Rare Bird Alert, 28 April 2018
Compiler: Joyce Takamine
Date: April 28, 2018
e-mail: RBA AT cobirds.org

This is the Rare Bird Alert for Saturday, April 28 sponsored by Denver
Field Ornithologists and the Bird Conservancy of the Rockies.

Highlight species include: (* indicates new information on this species)
NOTE: The RBA is now using the new AOU checklist and the order of families
has changed.
Snow Goose (Arapahoe, El Paso, Park)
Greater White-fronted Goose (Jackson, *Prowers, Rio Grande)
Trumpeter Swan (Archuleta, Garfield)
Tundra Swan (Garfield, *Prowers)
Greater Scaup (Mesa, Montrose)
Red-breasted Mergaser (Denver, *Kiowa, Park)
Sharp-tailed Grouse (*Weld)
Greater Prairie-Chicken (Yuma)
Red-necked Grebe (Park)
Clark’s Grebe (El Paso, Rio Blanco)
Greater Roadrunner (*El Paso)
White-throated Swift (Pueblo)
Virginia Rail (Chaffee)
Sora (Adams)
Sandhill Crane (*Kiowa)
Black-necked Stilt (Parker)
Black-bellied Plover (*Kiowa)
Snowy Plover (*Kiowa)
Semipalmated Plover (Montezuma)
Piping Plover (*Kiowa)
Mountain Plover (El Paso, Weld)
Upland Sandpiper (Prowers, Yuma)
Whimbrel (*Delta, El Paso, *Prowers)
Long-billed Curlew (Douglas, El Paso, Larimer)
HUDSONIAN GODWIT (*Kiowa)
Marbled Godwit (Douglas, Fremont, *Kiowa, Larimer, Park, Weld)
RUFF (*Kiowa)
Sanderling (Baca)
Dunlin (Rio Blanco)
Least Sandpiper (Kit Carson)
Semipalmated Sandpiper (Douglas, Kit Carson, Rio Blanco)
Short-billed Dowitcher (Weld)
Long-billed Dowitcher (Weld)
Wilson’s Snipe (*Ouray)
Solitary Sandpiper (Boulder, Mesa, Montezuma, Parker)
Willet (El Paso, Larimer, Montezuma, Weld)
Wilson’s Phalarope (Boulder, Douglas, Kit Carson, Larimer, Park)
Bonaparte’s Gull (Park)
Iceland Gull (Weld)
Caspian Tern (Jackson, Rio Blanco)
Common Tern (Mesa)
Forster’s Tern (Adams, Jackson)
Red-throated Loon (*Kiowa)
American White Pelican (Douglas)
Great Egret (*Denver)
Snowy Egret (Jackson, Montezuma, Parker)
Little Blue Heron (Boulder)
Cattle Egret (*Jefferson, *Kiowa, *Mesa)
Glossy Ibis (El Paso, *Jackson, *Pueblo)
White-faced Ibis (El Paso, Weld)
Turkey Vulture (Douglas)
Northern Goshawk (Larimer)
Broad-winged Hawk (*Boulder, Denver, *Jefferson, *Washington)
Rough-legged Hawk (*Jackson, *Kit Carson, Washington)
Ferruginous Hawk (Mesa)
Acorn Woodpecker (*La Plata)
Ladder-backed Woodpecker (*El Paso)
Hairy Woodpecker (*Weld)
Western Wood-Pewee (Adams)
Gray Flycatcher (Kit Carson)
Dusky Flycatcher (Montrose)
Eastern Phoebe (*Boulder, Chaffee, Fremont, Jefferson, *Kiowa)
Vermilion Flycatcher (*Larimer)
Ash-throated Flycatcher (Baca)
Cassin’s Vireo (Baca, *Denver)
Plumbeous Vireo (Fremont, Gilpin, *Mesa)
Chihuahuan Raven (Baca, *Kiowa)
Violet-green Swallow (Jefferson, Weld)
Northern Rough-winged Swallow (Gunnison, Moffat)
Bank Swallow (Rio Blanco)
Cliff Swallow (Moffat)
Mountain Chickadee (Lincoln, Weld)
Bushtit (Weld)
Rock Wren (Gunnison, Park)
Marsh Wren (Gunnison)
Carolina Wren (*Kiowa)
Blue-gray Gnatcatcher (*Kiowa, Kit Carson)
Eastern Bluebird (Adams)
Hermit Thrush (Jefferson)
Gray Catbird (Boulder)
Curve-billed Thrasher (El Paso, *Kiowa)
Northern Mockingbird (Broomfield, *El Paso)
American Pipit (*Baca, Kiowa)
Red Crossbill (*Arapahoe)
Chestnut-collared Longspur (Weld)
McCown’s Longspur (Douglas, Weld)
Green-tailed Towhee (*Rio Grande)
American Tree Sparrow (Boulder)
Chipping Sparrow (El Paso, Logan, Montezuma)
Lark Sparrow (Boulder, El Paso, Saguache)
Field Sparrow (*Kiowa)
Sagebrush Sparrow (Boulder, Saguache)
White-throated Sparrow (*El Paso)
Harris’s Sparrow (Denver, *El Paso)
Bullock’s Oriole (*Boulder)
Brown-headed Cowbird (Kit Carson, Yuma)
Rusty Blackbird (Boulder)
Black-and-white Warbler (Prowers)
Orange-crowned Warbler (Baca, Boulder, Fremont, Kit Carson)
LUCY’S WARBLER (Montezuma)
Nashville Warbler (El Paso)
Common Yellowthroat (Fremont, Jefferson)
Northern Parula (*Kiowa)
Yellow-throated Warbler (Baca, *Pueblo)
Grace’s Warbler (Jefferson, *Montezuma)
Black-throated Gray Warbler (*El Paso)
Wilson’s Warbler (Boulder)
Summer Tanager (Montezuma)

ADAMS COUNTY:
---On April 25 at Rocky Mountain Arsenal NWR First Creek, John Breitsch
reported Eastern Bluebird.
---On April 25 at Barr Lake SP banding station area, Matthew Sabatine
reported Sora and Western Wood-Pewee.

ARAPAHOE COUNTY:
---On April 27 on Big Dry Creek Trail from S Colorado Blvd to S Univ Blvd,
Shannon Stauffer reported too many Red Crossbills to count.

ARCULETA COUNTY:
---On April 24 at Pinon Lake Reservoir, Charles Martinez reported Trumpeter
Swan.

BACA COUNTY:
---On April 24 in town of Campo, Tony Leukering reported Yellow-throated
Warbler, 2 Cassin’s Vireos, and Chihuahuan Raven.
---On April 25 at Turk’s Pond SWA, Van Truan reported Sanderling.
---On April 24 at Two Buttes, Dave Leatherman reported Ash-throated
Flycatcher and Orange-crowned Warbler.
---On April 27 at Walsh Water Treatment Plant, Tony Leukering reported 2
American Pipit (alticola) and 3 American Pipit (rubescen/pacificus)

BOULDER COUNTY:
---On April 25 at Boulder Creek and 75th St, Elaine Wagner and Doug Kibbe
reported Eastern Phoebe. On April 26 at Boulder Creek and 75th St, Rebecca
Laroche, Nancy Ries Morrison, and Ginny Bergstrom reported Eastern Phoebe.
---On April 25 at Golden Ponds Park and NA, Luke Pheneger reported Eastern
Phoebe.
---On April 26 at Walden/Sawhill Ponds, Jessica Miller and John Malenich
reported Little Blue Heron. On April 27 at Walden/Sawhill, Chuck
Hundertmark reported Broad-winged Hawk perched on Sawhill side.
---On April 26 at Boulder and Left Hand Ditch—Lookout Road to Hwy 42, Ron
Podhajsky reported Lark Sparrow.
---On April 26 at Waneka Lake/Greenlee Preserve, Ted Floyd reported f Rusty
Blackbird on N shore of Waneka, 4 Wison’s Phalaropes at Greenlee, Solitary
Sandpiper and Greenlee and Orange-crowned Warbler.
---On April 26 on Mesa Trail complex, Sarah Spotten reported American Tree
Sparrow and Orange-crowned Warbler.
---On April 26 at Pleasant View Marsh in Boulder, Ernest Crvich reported
Wilson’s Warbler.
---On April 27 at CU Boulder East Campus, Peter Burke reported Bullock’s
Oriole.
---On April 27 on Sam’s Lane (South Boulder Creek S of US 36), Christian
Nunes reported Eastern Phoebe.

CHAFFEE COUNTŸ:
---On April 26 at Sands Lake SWA, Sally Waterhouse reported Eastern Phoebe.

DELTA COUNTY:
---On April 27 at Fruitgrowers Reservoir North Road causeway, Sue Riffe
reported 12 Whimbrel.

DENVER COUNTY:
---On April 25 at First Creek at DEN OS, Eric DeFonso reported Harris’s
Sparrow.
---On April 26 at Bluff Lake Nature Center, Elaine Wagner and Doug Kibbe
reported Broad-winged Hawk.
---On April 25 at Rocky Mountain Lake Park, Matt Gray, Elaine Wagner, Doug
Kibbe, and Gabriel Wiltse reported Great Egret. On April 27 at Rocky
Mountain Lake Park, Sunny Bradfield reported Great Egret.
---On April 25 at Sloan’s Lake Park, Matt Gray reported Red-breasted
Merganser.
---On April 27 at Bear Creek Park, Doug Kibbe and Elaine Wagner reported
Cassin’s Vireo.

DOUGLAS COUNTY:
---On April 24 at Chatfield SP Model Airplane Field, Loch Kilpatrick
reported McCown’s Longspur.
---On April 24 at Chatfield SP Marina Sandspit, Loch Kilpatrick reported
Semipalmated Sandpiper. On April 24 at Chatfield SP Marina Sandspit, David
Suddjian and his DFO Field Trip reported 40 Marbled Godwit, Long-billed
Curlew, and Wilson’s Phalarope.
---On April 26 at Bar CCC Park in Parker, Diane Roberts reported 4 Snowy
Egrets.
---On April 26 at Parker Regional Park aka Salisbury Equestrian Park, Diane
Robert, Loch Kilpatrick, Cynthia Kristensen and Tim Ryan reported
Black-necked Stilt, Solitary Sandpiper, and Snowy Egret.

EL PASO COUNTY:
---On April 24 at Sinton Pond OS, Chris Brobin reported Nashville Warbler.
On April 25 at Sinton Pond OS, Tanja Britton and Scott Chalmers reported
Nashville Warbler.
---On April 26 at Chico Basin Ranch, Alan and MaryLynne Ketcham reported
Curve-billed Thrasher. On April 27 at Chico Basin Ranch, Bill Maynard,
Tanja Britton, and Jim Merritt reported Ladder-backed Woodpecker and
Northern Mockingbird.
---On April 24 on Shumway Road outside of Fountain, Cici Lee reported 25 0
30 White-faced Ibis with possible Glossy Ibis in a wet field on east side
of road. On April 25 on Shumway Road, Alan and Mary Lynne Ketcham and
several other birders reported Whimbrel. On Aprill 26 on Shumway Road,
John Drummond reported Whimbrel.
---On April 25 at Squirrel Creek Reservoir, Cici Lee reported 10 Snow
Geese. On April 26 at Sqaurrel Creek Reservoir, Cici Lee and Jeannie
Mitchell reported Clark’s Grebe.
---On April 27 at Red Rock Canyon OS, Jim Merritt reported Chipping
Sparrow, Harris’s Sparrow, and White-throated Sparrow.
---On April 26 at Drake Lake on Mallard Road in Falcon/Peyton area, Cici
Lee reported 11 Willets.
---On April 27 in Eastern El Paso on farm just north of Edison School,
Susan Craig reported Greater Roadrunner which moved to the school.
---On April 27 at Venetucci Farm, David Rubin reported 2 Black-throated
Gray Warblers and Harris’s Sparrow.

FREMONT COUNTY:
---On April 25 at Florence (town), Jerry DeBoer reported Marbled Godwit.
---On April 26 at canon City Riverwalk – Mackenzie Ave to S Raynolds, Jerry
DeBoer reported 2 Eastern Phoebe, Plumbeous Vireo, Orange-crowned Warbler,
Common Yellowthroat.

GARFIELD COUNTY:
---On April 25 at Lions Park in Rifle, Jodi Chambers reported Trumpeter
Swan. On April 26 at Lions Park in Rifle, Sondra Lee Walling reported
Tundra Swan.

GILPIN COUNTY:
---On April 26 at Golden Gate Canyon, Coyote Trail head, Eric DeFonso
reported Plumbeous Vireo.

GUNNISON COUNTY:
---On April 24 at McCabes Lane Wetland, Riley Morris reported 2 Northern
Rough-winged Swallows and Marsh Wren.
---On April 25 at Blue Mesa Reservoir, Holly Annala reported Rock Wren.

JACKSON COUNTY:
---On April 25 at Walden Reservoir, Sue Riffe reported 2 Caspian Tern. On
April 26 at Walden Reservoir, Nick Komar reported Greater White-fronted
Goose, 3 Snowy Egrets, and 2 Forster’s Tern. On April 27 at Walden
Reservoir on SE side Nick Komar reported Glossy Ibis.
---On April 27 on Hwy 14 (40.4104. -106.54211), Nick Komar reported
Rough-legged Hawk.

JEFFERSON COUNTY:
---On April 26 at Chatfield Banding Station Meredith McBurney reported
banding Hermit Thrush and Common Yellowthroat.
---On April 27 at Dinosaur Ridge, Debbie James reported Broad-winged Hawk
---On April 27 at Main Reservoir in Lakewood, Kevin DeBoer reported
Townsend’s Warbler.
---On April 27 at North Arvada Middle School, Ginny Bergstrom reported 5
Cattle Egret feeding in grass.

KIOWA COUNTY:
---On April 27 at Neenoshe Reservoir, David Tonnessen reported 17 Sandhill
Cranes, Red-throated Loon, 14 Red-breasted Mergansers, HUDSONIAN GODWIT,
Curve-billed Thrasher, Carolina Wren, Cattle Egret, 8 Snowy Plover, Piping
Plover, 27 Marbled Godwit, 5 Blue-gray Gnatcatchers.
---On April 27 at Upper Queens/Neeskah Reservoir, David Tonnessen reported
Black-bellied Plover, 4 Snowy Plovers, 4 Marbled Godwits, Chihuahuan Raven,
2 Blue-gray Gnatcatcher, Northern Parula, and Field Sparrow. Late in day
on April 27, at Upper Queens, David Dowell reported f RUFF on N shore,
Eastern Phoebe, 5 Blue-gray Gnatcatchers, and Northern Parula.

KIT CARSON COUNTY:
---On April 27 on US 385 S of I-70, Kevin Pykstra reported 1st year
Rough-legged Hawk.

LARIMER COUNTY:
---On April 24 at Arapahoe Bend NA Rigden Reservoir (Strauss Cabin Lake),
Josh Bruening reported 24 Marbled Godwits, Willet, Long-billed Dowitcher, 4
Wilson’s Phalaropes.
---On April 27 at Cattail Chorus NA, Adams Johnson, David Wade, John
Shenot, and Georgia Doyle reported m Vermilion Flycatcher.

LINCOLN COUNTY:
---On April 24 in Hugo, Cameron Carver reported 2 Mountain Chickadees in SE
corner of cemetery.

MESA COUNTY:
---On April 24 at Ela Wildlife Sanctuary, Mike Henwood reported 2 Solitary
Sandpipers. On April 25 at Ela Wildlife Sanctuary, Kathleen McGinley
reported Solitary Sandpiper. On April 26 at Ela Wildlife Sanctuary, Nic
Korte reported 3 Solitary Sandpipers.
---On April 24 in Mack Mesa Airport Area to Highline Lake SP, Mike Henwood
reported Greater Scaup.
---On April 24 on Brewster’s Ridge/Bar X Wash, Mike Henwood reported
Ferruginous Hawk.
---On April 26 at Highline Lake SP, Mike Henwood reported 3 Greater Scaup
and 2 Common Tern.
---On April 27 at Clifton Nature Park, Ryan Claar reported Cattle Egret.
---On April 27 at Horsethief Canyon SWA, David Price reported 2 Plumbeous
Vireos.

MONTEZUMA COUNTY:
---On April 25 at Totten Reservoir, Glenn Dunmire, Erick Hendrickson, and
Linda Raczek reported 3 Snowy Egret, Semipalmated Plover and Willet.
---On April 24 in Yellowjacket Canyon/ G Road area, Susan Allerton reported
7 Lucy’s Warblers and 1 m Summer Tanager. Allerton reported that there
were probable 5 territories along this stretch of Yellowjacket Canyon.
---On April 25 at Simon Draw, Glenn Dunmire, Erick Hendrickson, and Linda,
Raczek reported Solitary Sandpiper.
---On April 27 at San Juan NF, FR 526, Gregg Goodrich reported 2 Grace’s
Warblers.

OURAY COUNTY:
---On April 27 on Golden Eagle Trail Pond, Carl Winstead and Leslie Sours
reported Wilson’s Snipe.

PARK COUNTY:
---On April 24 at Antero Reservoir, David Dowell reported 12 Red-breasted
Mergansers, 4 Snow Geese, 3 Wilson’s Phalarope, Marbled Godwit.
---On April 24 at Spinney Mountain Reservoir, David Dowell reported 2
Marbled Godwits, 2 Red-necked Grebe, Rock Wren, 3 Wilson’s Phalarope, and
14 Bonaparte’s Gulls.

PROWERS COUNTY:
---On April 27 at Northgate Park, Tony Leukering reported Tundra Swan and 3
Greater White-fronted Geese.
---On April 24 on US 50 East of CR 16, Cameron Carver reported Upland
Sandpiper.
---On April 25 at Fairmount Cemetery, Dave Leatherman reported
Black-and-white Warbler.
---On April 27 at intersection of CR 12 and CR B.5, Tony Leukering reported
4 Whimbrel (Hudsonian)

PUEBLO COUNTY:
---On April 26 at Mineral Palace Park in Pueblo, Van Truan and Brandon
Percival reported Yellow-throated Warbler. On April 27 at Mineral Palace
Park, Van Truan reported Yellow-throated Warbler.
---On April 27 at Chico Basin Ranch, Bill Maynard, Tanja Britton, and Jim
Merritt reported Glossy Ibis.

RIO GRANDE COUNTY:
---On April 27 on Deer Horn Road in Del Norte, David Kevin reported
Green-tailed Towhee.

RIO BLANCO COUNTY:
---On April 24 at Rio Blanco SWA, Gregg Goodrich reported Clark’s Grebe,
Caspian Tern, and 2 Bank Swallows.
---On April 24 at XTO Retention Pond, Gregg Goodrich reported Semipalmated
Sandpiper and Dunlin.

SAGUACHE COUNTY:
---On April 26 at Russell Lakes SWA, Jeff Dawson reported Lark Sparrow and
Sagebrush Sparrow.

WASHINGTON COUNTY:
---On April 25 on Hwy 34 and CR YY, Matthew Sabatine reported Rough-legged
Hawk.
---On April 27 at Akron Golf Course, Joey Kellner et al reported juv
Broad-winged Hawk.

WELD COUNTY:
---On April 24 at Eaton Cemetery, Steve Mlodinow reported 2 Mountain
Chickadee.
---On April 27 at Norma’s Grove, Joey Kellner et al reported Harry
Woodpecker (Rocky Mt).
---On April 23 on CR 40 between CR 45 and CR 47, Gene Rutherford reported
basic plumaged Red-necked Phalarope.
---On April 24 at Glenmere Park in Greeley, Steve Mlodinow reported 3
Bushtit and 2 Mountain Chickadee. On April 25 at Glenmere Park, Shawn
Mason reported 2 Bushtit.
---On April 24 at Windsor Lake, Steve Mlodinow reported Iceland (Thayer’s)
Gull.
---On April 25 at Lower Latham Reservoir, Renee Casias reported 8
Short-billed Dowitcher and Marbled Godwit.
---On April 25 at CR 45 north to CR 114, Josh Bruening reported 7
Chestnut-collared Longspurs and McCown’s Longspur.
---On April 25 at CR 79 south of Hwy 14, Josh Bruening reported Mountain
Plover and Long-billed Curlew.
---On April 25 at Pond on CR 13 N of Hwy 14, Josh Bruening reported 20
Marbled Godwits, 8 Willet, 20 Wilson’s Phalarope, and Long-billed Dowitcher.
---On April 27 at CR 134 between CR 111 and CR 115, Matt Newport reported 7
Sharp-tailed Grouse.

YUMA COUNTY:
---On April 25 at Bledsoe Cattle Ranch, Matthew Sabatine reported 40
Greater Prairie Chicken and Upland Sandpiper.

DFO Field Trips:
For details please visit the DFO website dfobirds.org

Saturday, April 28
6:00-AM – 6:00 PM
Poudre River and Poudre Canyon led by Chris Goulart (cgoular001 AT
comast.net; 586-764-2126) This trip is FULL.

Saturday, April 28
7:00 AM – 12:00 PM
Walden Pond Wildlife Habitat/Sawhill led by Chuck Hundertmark
(chundertmark8 AT gmail.com; 303-604-0531)

Sunday, April 29
6:00 AM – 6:00 PM
Chico Basin Ranch led by Mark Amershek (mamershek AT msn.com;
303-329-8646) This trip is FULL

Sunday April 29
8:00 AM – 11:30 AM
Rocky Mountain Arsenal NWR led by Candice Johnson (candice.johnson AT
childrenscolorado.org; 303-329-8131)

Sunday, April 29
8:00 AM – 11:00 AM
Roxborough State Park led by Alison Kondler (birdtrills AT gmail.com;
303-904-9140) This trip is FULL.

Good Birding,
Joyce Takamine
Boulder

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