Date: 4/29/18 3:10 am
From: Joyce Takamine <jabirujt...>
Subject: [cobirds] Colorado Rare Bird Alert, 29 April 2018
Compiler: Joyce Takamine
Date: April 29, 2018
e-mail: RBA AT cobirds.org

This is the Rare Bird Alert for Sunday, April 29 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)
Ross’s Goose (*Jackson)
Greater White-fronted Goose (*Jackson, Prowers, Rio Grande)
Trumpeter Swan (Garfield)
Tundra Swan (*Garfield, *Prowers)
Greater Scaup (*Jackson, Montrose, *Weld)
Red-breasted Mergaser (Denver, Kiowa, *Rio Blanco)
CALIFORNIA QUAIL (*Moffat)
Greater Sage-Grouse (*Jackson)
Sharp-tailed Grouse (Weld)
Greater Prairie-Chicken (Yuma)
Clark’s Grebe (El Paso)
White-winged Dove (*Boulder)
Greater Roadrunner (El Paso)
White-throated Swift (Pueblo)
Virginia Rail (Chaffee)
Sora (Adams, *Jackson)
Sandhill Crane (Kiowa)
Black-necked Stilt (Parker)
Black-bellied Plover (*Kiowa)
Snowy Plover (*Kiowa)
Semipalmated Plover (*Jackson, *Kiowa, Montezuma)
Piping Plover (*Kiowa)
Mountain Plover (El Paso, Weld)
Upland Sandpiper (Yuma)
Whimbrel (Delta, El Paso, Prowers, *Weld)
Long-billed Curlew (El Paso)
HUDSONIAN GODWIT (Kiowa)
Marbled Godwit (Fremont, *Jackson, *Kiowa, Weld)
RUFF (Kiowa)
Stilt Sandpiper (*Weld)
Sanderling (Baca)
Dunlin (*Kiowa)
Least Sandpiper (Kit Carson)
Pectoral Sandpiper (*Kit Carson)
Semipalmated Sandpiper (Kit Carson)
Short-billed Dowitcher (Weld)
Long-billed Dowitcher (*Kiowa, Weld)
Wilson’s Snipe (Ouray)
Solitary Sandpiper (Boulder, Mesa, Montezuma, Parker)
Willet (El Paso,*Jackson, Montezuma, Weld)
Wilson’s Phalarope (Boulder, Kit Carson)
Red-necked Phalarope (*Weld)
Caspian Tern (Jackson, *Weld)
Common Tern (Mesa)
Forster’s Tern (Adams,* Jackson)
Red-throated Loon (Kiowa)
American White Pelican (Douglas)
Great Egret (*Denver)
Snowy Egret (*Jackson, Montezuma, Parker, *Rio Blanco)
Little Blue Heron (Boulder)
Cattle Egret (*Jefferson, Kiowa, *Mesa)
Glossy Ibis (*Fremont, Jackson, *Pueblo)
White-faced Ibis (Weld)
Turkey Vulture (Douglas)
Northern Goshawk (Larimer)
Broad-winged Hawk (Boulder, Denver, *Jefferson, Washington)
ZONE-TAILED HAWK (*Douglas)
Rough-legged Hawk (Jackson, Kit Carson, *Lincoln, Washington)
Acorn Woodpecker (La Plata)
Red-bellied Woodpecker (*Bent)
Ladder-backed Woodpecker (*El Paso)
Hairy Woodpecker (*Weld)
Western Wood-Pewee (Adams)
Gray Flycatcher (*Boulder, Kit Carson)
Dusky Flycatcher (*Dolores, Montrose)
Black Phoebe (*Pueblo)
Eastern Phoebe (*Boulder, Chaffee, Fremont, Jefferson, Kiowa)
Vermilion Flycatcher (Larimer)
Cassin’s Kingbird (*Larimer)
Gray Vireo (*Montrose)
Cassin’s Vireo (*Bent, Denver)
Western Kingbird (*Delta)
Plumbeous Vireo (Fremont, Gilpin, *Mesa)
Chihuahuan Raven (Kiowa)
Violet-green Swallow (Jefferson, Weld)
Northern Rough-winged Swallow (Moffat)
Cliff Swallow (Moffat)
Bushtit (Weld)
Rock Wren (Gunnison)
Carolina Wren (Kiowa)
Blue-gray Gnatcatcher (Kiowa, Kit Carson)
Eastern Bluebird (Adams, *El Paso)
Hermit Thrush (Jefferson)
Gray Catbird (Boulder)
Curve-billed Thrasher (*El Paso, Kiowa)
Sage Thrasher (*Jackson)
Northern Mockingbird (Broomfield, *El Paso)
American Pipit (Baca, *Jackson, Kiowa)
Red Crossbill (Arapahoe)
Chestnut-collared Longspur (Weld)
McCown’s Longspur (Weld)
Green-tailed Towhee (Rio Grande)
American Tree Sparrow (Boulder)
Chipping Sparrow (Logan, Montezuma)
Lark Sparrow (Boulder, El Paso, Saguache)
Field Sparrow (*Bent, *Kiowa, *Kit Carson)
Sagebrush Sparrow (Boulder, Saguache)
White-throated Sparrow (*El Paso)
Harris’s Sparrow (*Denver, *El Paso)
Bullock’s Oriole (*Bent, Boulder, *Montezuma)
Brown-headed Cowbird (Kit Carson, Yuma)
Rusty Blackbird (Boulder)
Black-and-white Warbler (Prowers)
Orange-crowned Warbler (Boulder, Fremont, *Gunnison, *Kiowa, *Kit Carson)
Nashville Warbler (El Paso)
Virginia’s Warbler (*Delta, *Larimer)
Common Yellowthroat (*Adams, Fremont, Jefferson)
Northern Parula (*Kiowa)
Yelllow Warbler (*Delta, *Larimer)
Yellow-throated Warbler (Pueblo)
Grace’s Warbler (*Dolores, Jefferson, Montezuma)
Black-throated Gray Warbler (El Paso)
Wilson’s Warbler (Boulder)
Lazuli Bunting (*Larimer)

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.
---On April 28 at Rocky Mountain Arsenal Lake Ladora, Riley Morris reported
Common Yellowthroat.

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.

BACA COUNTY:
---On April 25 at Turk’s Pond SWA, Van Truan reported Sanderling---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 28 at Boulder Creek and 75th St, Chuck Hundertmark and DFO Field
trip reported pair of Eastern Phoebe.
---On April 28 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.
---On April 28 at Twin Lakes, Dan Zmolek and Leslie S reported White-winged
Dove and Gray Flycatcher.

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.
---On April 28 on 265 Rd east of Paonia, Dennis Garrison reported Yellow
Warbler, Virginia’s Warbler, and Western Kingbird.

DENVER COUNTY:
---On April 28 at First Creek at DEN OS, John Breitsch and Judith Henderson
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 28 at
Rocky Mountain Lake Park, Eric DeFonso and Gabriel Wiltse 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.

DOLORES COUNTY:
---On April 28 on San Juan NF FR 504, Susan Allerton reported 3 Dusky
Flycatchers and 5 Grace’s Warblers.

DOUGLAS COUNTY:
---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.
---On April 28 at Chatfield SP, Joey Kellner et al reported soaring
ZONE-TAILED HAWK.

EL PASO COUNTY:
---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 28 at Chico Basin Ranch, John Drummon
reported Ladder-backed Woodpecker, 2 Curve-billed Thrashers, and 3 Northern
Mockingbirds.
---On April 25 on Shumway Road, Alan and Mary Lynne Ketcham and several
other birders reported Whimbrel. On April 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 Squirrel Creek Reservoir, Cici Lee and Jeannie
Mitchell reported Clark’s Grebe.
---On April 28 at Red Rock Canyon OS, Jim Merritt reported 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.
---On April 28 at Ramah Reservoir SWA, Alan Ketcham reported Eastern
Bluebird.
---On April 28 on S Meridian Road --- Hanover Road to Pueblo County Line,
Tim Leppek reported Ladder-backed Woodpecker.
---On April 28 on Kane Road in Fountain, Jim Merritt, Aaron and Pati
Driscoll reported Glossy Ibis.

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.
---On April 28 in flooded fields outside Florence, SeEtta Moss reported
probable Glossy Ibis.

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. On April 27 at Lions Park in Rifle, Tom McConnell reported
Tundra Swan.

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

GUNNISON COUNTY:
---On April 25 at Blue Mesa Reservoir, Holly Annala reported Rock Wren.
---On April 28 at Waunita Hot Springs Lek, Nick Komar et al reported
Orange-crowned Warbler.

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 28 at
Walden Reservoir, Steve Mlodinow, Doug Kibbe, and Mackenzie Goldthwait
reported Ross’s Gull, Greater White-fronted Goose, Greater Scaup, 3 Snowy
Egrets, 10 Willets, 2 Marbled Godwits, and 2 Forster’s Terns.
---On April 27 on Hwy 14 (40.4104. -106.54211), Nick Komar reported
Rough-legged Hawk.
---On April 28 at MacFarlane Reservoir, Steve Mlodinow reported pair of
Greater Scaup, 2 Sage Thrashers, and 13 American Pipits.
---On April 28 at Arapaho NWR Auto Loop, Steve Mlodinow reported 2 Greater
Sage-Grouse, 2 Sora, Semipalmated Plover, and 9 Marbled Godwits.

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 28 at Dinosaur Ridge, Mitchell Blystone reported 7 Broad-winged
Hawks.
---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. On April 28 at North Arvada Middle School,
Penney Martinez, Shannon Cwik, Cathy Fennelly, and Phil Lyon reported 15
Cattle Egret.

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 28 at
Neenoshe Reservoir, Brandon Percival, Dave Leatherman and Janeal Thompson
reported Field Sparrow and Piping Plover.
---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. On April 28
at Upper Queens/Neeskah Reservoir, Brandon Percival, Dave Leatherman, and
Janeal Thompson reported Black-bellied Plover, 5 Snowy Plover, 3
Semipalmated Plover, 12 Marbled Godwits, Dunlin, 25 Long-billed Dowitchers,
Orange-crowned Warbler, and Northern Parula.

KIT CARSON COUNTY:
---On April 27 on US 385 S of I-70, Kevin Pykstra reported 1st year
Rough-legged Hawk.
---On April 28 at Flager Reservoir SWA, Adam Vesely and Christine Alexander
reported Pectoral Sandpiper, Field Sparrow, and Orange-crowned Warbler.

LARIMER COUNTY:
---On April 27 at Cattail Chorus NA, Adams Johnson, David Wade, John
Shenot, and Georgia Doyle reported m Vermilion Flycatcher. On April 28 at
Cattail Chorus NA, Nick Komar and Walter Wehtje reported Cassin’s Kingbird.
---On April 28 at Lory State Park, Francis Commercon reported 2 Virginia’s
Warblers.
---On April 28 at Loveland Recycle Center Pond, James Kohn reported Yellow
Warbler.
---On April 28 at Hewlett Gulch, Adrian Monroe reported Lazuli Bunting.

LINCOLN COUNTY:
---On April 28 on Hwy 71 N of Limon, John and Sue Ewan reported
Rough-legged Hawk.

MESA COUNTY:
---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 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.
---On April 28 on Colorado River Trail – Audubon Section, Mike Henwood
reported Plumbeous Vireo.
---On April 28 at Highline Lake SP, Denise and Mark Vollmar reported Cattle
Egret.
---On April 28 in Loma around 1200 Q Road, Rodene Harwood and ronda
Woodward reported Cattle Egret.

MOFFAT COUNTY:
---On April 27 and 28 at Dinosaur National Monument Canyon Area Visitor
Center, Tom McConnell
reported hearing CALIFORNIA QUAIL but not seeing it.

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 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.
---On April 28 on Rd G (37.2287,-108.8824), Gregg Goodrich and DFO Field
Trip reported Bullock’s Oriole.

MONTROSE COUNTY:
---On April 28 at Broad Canyon Landfill Rd, Coen Dexter and Brenda Wright
reported Gray Vireo.

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

PROWERS COUNTY:
---On April 27 at Northgate Park, Tony Leukering reported Tundra Swan and 3
Greater White-fronted Geese. On April 28 at Northgate Park, Brandon
Percival reported Tundra Swan.
---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. On April 28 at Chico Basin Ranch, John
Drummond and Frank Farrell reported Glossy Ibis.
---On April 28 at Valco Ponds, Tim Leppek reported Black Phoebe.

RIO BLANCO COUNTY:
---On April 27 and 28 at Rio Blanco Lake, Tom McConnell reported
Red-breasted Merganser.
---On April 27 and 28 at Kenney Reservoir, Tom McConnell reported Snowy
Egret.

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

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 27 at Norma’s Grove, Joey Kellner et al reported Harry
Woodpecker (Rocky Mt).
---On April 25 at Glenmere Park, Shawn Mason reported 2 Bushtit.
---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.
---On April 28 at Ireland Reservoir #5, Phillip McNicols, Cynthia
McNichols, Tracy Rackauhaus, and Rebecca Laroche reported Red-necked
Phalarope.
---On April 28 at Pudre Ponds, Christian Hagenlocher reported 3 Caspian
Terns.
---On April 28 at Beebe Draw, Rebecca Laroche, Tracy Rackaukas, and Bill
Schreitz reported Stilt Sandpiper.
---On April 28 on farm pond .4 miles n of intersection of CR 42 and CR 47,
Bill Fink reported 4 Whimbrel and pair of Greater Scaup.

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
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)

Good Birding,
Joyce Takamine
Boulder

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