Date: 5/1/18 3:15 am
From: Joyce Takamine <jabirujt...>
Subject: [cobirds] Colorado Rare Bird Alert, 1 May 2018
Compiler: Joyce Takamine
Date: May 1, 2018
e-mail: RBA AT cobirds.org

This is the Rare Bird Alert for Tuesday, May 1 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)
Ross’s Goose (Jackson)
Greater White-fronted Goose (Jackson ,Jefferson, Rio Grande)
Tundra Swan (Prowers)
Greater Scaup (Jackson, Montrose, Weld)
Surf Scoter (*Crowley)
Red-breasted Mergaser (Kiowa, Rio Blanco)
CALIFORNIA QUAIL (Moffat)
Greater Sage-Grouse (Jackson)
Sharp-tailed Grouse (Weld)
Greater Prairie Chicken (*Yuma)
White-winged Dove (Boulder)
Chimney Swift (Arapahoe)
White-throated Swift (Pueblo)
Virginia Rail (Chaffee)
Sora (Jackson, *Montezuma)
Sandhill Crane (*Montezuma)
Black-necked Stilt (*Montezuma)
Black-bellied Plover (Kiowa)
Snowy Plover (Kiowa)
Semipalmated Plover (Jackson, Kiowa, *La Plata)
Piping Plover (Kiowa)
Mountain Plover (Lincoln)
Upland Sandpiper (*Sedgwick, *Yuma)
Whimbrel (Weld)
Marbled Godwit (*Crowley, Jackson, Kiowa)
Stilt Sandpiper (Weld)
Dunlin (Kiowa)
Least Sandpiper (Kit Carson)
Solitary Sandpiper (*San Miguel)
Pectoral Sandpiper (Kiowa, Kit Carson)
Semipalmated Sandpiper (Kit Carson)
Long-billed Dowitcher (Kiowa, Weld)
Willet (Jackson, *Jefferson, Weld)
Wilson’s Phalarope (Kit Carson)
Red-necked Phalarope (*Mesa, Weld)
Caspian Tern (*Crowley, Weld)
Black Tern (*Mesa)
Common Tern (*Mesa, Weld)
Forster’s Tern (Adams, *Crowley, Jackson)
American White Pelican (Douglas)
Great Egret (Denver)
Snowy Egret (Jackson, Rio Blanco)
Little Blue Heron (*Mesa)
Cattle Egret (Jefferson)
Green Heron (Mesa)
Glossy Ibis (Boulder, *El Paso, Fremont, Pueblo, Weld)
White-faced Ibis (Weld)
Turkey Vulture (Douglas)
Northern Goshawk (Larimer)
Broad-winged Hawk (*Boulder, *Jefferson)
ZONE-TAILED HAWK (Douglas)
Rough-legged Hawk (*Lincoln)
Acorn Woodpecker (La Plata)
Red-bellied Woodpecker (Bent)
Ladder-backed Woodpecker (*El Paso)
Western Wood-Pewee (Mesa)
Least Flycatcher (*Jefferson)
Gray Flycatcher (Boulder, Kit Carson)
Dusky Flycatcher (Dolores, Montrose, Prowers)
Black Phoebe (Montrose, Pueblo)
Eastern Phoebe (*Boulder, *Douglas, Jefferson)
Ash-throated Flycatcher (Mesa)
Cassin’s Kingbird (*El Paso, La Plata, Larimer)
Gray Vireo (Montrose)
Cassin’s Vireo (Bent)
Western Kingbird (Delta)
White-eyed Vireo (Prowers)
Plumbeous Vireo (Adams, *Arapahoe, *Denver, El Paso, *Mesa)
Warbling Vireo (*Pueblo)
Violet-green Swallow (Jefferson, Weld)
Northern Rough-winged Swallow (Moffat)
Cliff Swallow (Moffat)
Blue-gray Gnatcatcher (Kit Carson)
Eastern Bluebird (*El Paso, Fremont)
Gray Catbird (Boulder)
Curve-billed Thrasher (*El Paso)
Sage Thrasher (Jackson, *Yuma)
Northern Mockingbird (Broomfield, El Paso)
American Pipit (*Crowley, Jackson, Kiowa)
Chestnut-collared Longspur (Weld)
McCown’s Longspur (Weld)
Green-tailed Towhee (Boulder)
Cassin’s Sparrow (*Yuma)
Chipping Sparrow (Logan, Montezuma)
Clay-colored Sparrow (*Douglas)
Lark Sparrow (Boulder, El Paso)
Black-throated Sparrow (Mesa)
Grasshopper Sparrow (Weld, *Yuma)
Field Sparrow (Bent, Kit Carson, Prowers)
Sagebrush Sparrow (Boulder)
White-throated Sparrow (El Paso)
Harris’s Sparrow (Denver)
Yellow-breasted Chat (Montrose)
Bullock’s Oriole (Bent, Denver, Montezuma)
Baltimore Oriole (*Fremont)
Scott’s Oriole (*Pueblo)
Brown-headed Cowbird (Kit Carson, Yuma)
Northern Waterthrush (El Paso)
Orange-crowned Warbler (*Boulder, Gunnison, Kiowa, Kit Carson)
Nashville Warbler (Arapahoe, Lincoln, Prowers)
Virginia’s Warbler (*Boulder, Delta, *Larimer)
MacGillivrary’s Warbler (*Larimer)
Common Yellowthroat (Adams)
Hooded Warbler (*Broomfield)
American Redstart *Jefferson)
Northern Parula (Kiowa)
Yelllow Warbler (Delta, Larimer)
Black-throated Blue Warbler (*Jefferson)
Palm Warbler (Bent)
Grace’s Warbler (Dolores, Jefferson)
Black-throated Gray Warbler (*Jefferson, *Mesa)
Wilson’s Warbler (*Boulder)
Summer Tanager (Larimer, Lincoln)
Western Tanager (*Larimer)
Northern Cardinal *Prowers)
Rose-breasted Grosbeak (*Prowers)
Lazuli Bunting (Boulder, Douglas, Larimer, Lincoln, Mesa, Montrose, Prowers)

ADAMS COUNTY:
---On April 28 at Rocky Mountain Arsenal Lake Ladora, Riley Morris reported
Common Yellowthroat.
---On April 29 at Barr Lake SP East Side, Bez Bezuidenhout reported
Plumbeous Vireo.
---On April 28 at St Mary Church in Littleton, David Suddjian reported 3
Chimney Swift and Nashville Warbler.

ARAPAHOE COUNTY:
---On April 30 on Big Dry Creek Trail between Dry Creek Blvd and Arapahoe
Blvd, Mary O’Connor reported Plumbeous Vireo.

BENT COUNTY:
---On April 29 at Melody Tempel Grove, Matt Clark et al reported Palm
Warbler (Yellow).

BOULDER COUNTY:
---On April 28 at Boulder Creek and 75th St, Chuck Hundertmark and DFO
Field trip reported pair of Eastern Phoebe. On April 30 at Boulder Creek
and 75th St, Katie Lehman and David Haskell reported 2 Eastern Phoebe.
---On April 28 at Golden Ponds Park and NA, Luke Pheneger reported Eastern
Phoebe. On April 29 at Golden Ponds Park and NA, Sarah Spotten and Scott
Severs reported Eastern Phoebe; Severs also reported 3 Broad-winged Hawks.
---On April 29 at Waneka Lake/Greenlee Preserve, Ted Floyd and many other
birders reported Glossy Ibis.
---On April 28 at Twin Lakes, Dan Zmolek and Leslie S reported White-winged
Dove and Gray Flycatcher.
---On April 29 on South Mesa Trail, Tracy and Luke Pheneger reported
Virginia’s Warbler and Green-tailed Towhee.
---On April 29 at City of Boulder, Open Space and Mountain Parks Cherryvale
Office, Christian Nunes reported Lark Sparrow.
---On April 29 at Hall Ranch South, Steve Mlodinow reported Lazuli Bunting
and Green-tailed Towhee.
---On April 30 at Skunk Canyon trails, David Dowell reported Broad-winged
Haw, 3 Virginia’s Warbler and Wilson’s Warbler.
---On April 30 at CU Boulder South Campus, Laura Steadman reported
Virginia’s Warber and Orange-crowned Warbler.

BROOMFIELD COUNTY:
---On April 29, Sandy Arnesen reported a Hooded Warbler has been visiting
her back yard. If you would like to see it, contact Sandy at
sandy.arnesen.SA AT gmail.com or call 303-941-5481. On April 30, Edie
Israel, Connie, and Joyce Takamine and Bob Spencer reported m Hooded
Warbler at yard of Sandy Arnesen.

CROWLEY COUNTY:
---On April 30 at Lake Meredith, David Bell and Siobhan Darlington reported
39 Marbled Godwits, Caspian Tern, and 40 Forster’s Terns.
---On April 30 at Lake Henry, David Bell and Siobhan Darlington reported
imm m Surf Scoter and
2 American Pipts.

DELTA COUNTY:
---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 29 at First Creek at DEN OS, Charlies
Chase reported Bullock’s Oriole.
---On April 28 at Rocky Mountain Lake Park, Eric DeFonso and Gabriel Wiltse
reported Great Egret. On April 28 at Rocky Mountain Lake Park, Gwen Moore,
James McCall, and Judith Henderson reported Great Egret.
---On April 29 at Westerly Creek Park, Jason Bidgood reported Harris’s
Sparrow.
---On April 30 at Denver City Park, Rebecca Laroche reported Plumbeous
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 28 at Chatfield SP, Joey Kellner et al reported soaring
ZONE-TAILED HAWK.
---On April 29 at Roxborough SP, David Chernak reported Lazuli Bunting
---On April 30 on Walker Trail, CO 86 bridge, Hugh Kingery reported Eastern
Phoebe under the bridge.
---On April 30 at Chatfield SP Marina Sandspit, Doug Kibbe and Mackenzie
Goldthwait reported Clay-colored Sparrow.

EL PASO COUNTY:
---On April 28 at Chico Basin Ranch, John Drummond reported Ladder-backed
Woodpecker, 2 Curve-billed Thrashers, and 3 Northern Mockingbirds. On
April 29 at Chico Basin Ranch wooded areas, Kiki Widjaja reported 2
Ladder-backed Woodpeckers. On April 30 at Chico Basin Ranch, Gary Koehn
reported Ladder-backed Woodpecker.
---On April 28 at Red Rock Canyon OS, Jim Merritt reported Harris’s
Sparrow, and White-throated Sparrow. On April 29 at Red Rock Canyon OS,
Jim Merritt reported White-throated Sparrow.
---On April 28 at Ramah Reservoir SWA, Alan Ketcham reported Eastern
Bluebird. On April 30 at Ramah Reservoir SWA, John Bruder and Monday
Birders reported Cassin’s Kingbird and 2 Eastern bluebirds.
---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. On April 29 on Kane Road, Robb Hinds, Alan
Ketcham, Joy and Leonard Lake reported Glossy Ibis. On April 30 on Kane
Road, Terence Berger, Chris Brobin, Mel and Jeanne Goff reported Glossy Ibis
---On April 29 on Hanover Road, Kiki Widjaja reported Curve-billed Thrasher
and Ladder-backed Woodpecker. On April 30 on Hanover Road, Gary Koehn,
David Bell, and Siobhan Darlington reported 3 Ladder-backed Woodpecker and
Curve-billed Thrasher.
---On April 29 at Rock Ledge Ranch, Dolf Hall reported Northern Waterthrush.
---On April 29 at Aiken canyon Preserve, Tanja Britton reported Plumbeous
Vireo.
---On April 30 on Blazing game Road, John Bruder reported 3 Cassin’s
Kingbirds.
---On April 30 on Yoder Rd, Monday Birders reported 2 Cassin’s Kingbirds.
---On April 30 on Funk Road, Monday Birders reported Cassin’s Kingbird.

FREMONT COUNTY:
---On April 28 in flooded fields outside Florence, SeEtta Moss reported
probable Glossy Ibis.
---On April 29 in Florence (town), Dale and Joel Adams reported Glossy Ibis
and Eastern Bluebird.
---On April 30 on Canon City Riverwalk from Sells Lake to S Raynolds Ave,
Jerry DeBoer reported m Baltimore Oriole.

GUNNISON COUNTY:
---On April 28 at Waunita Hot Springs Lek, Nick Komar et al reported
Orange-crowned Warbler.

JACKSON COUNTY:
---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 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 28 at Dinosaur Ridge, Mitchell Blystone reported 7 Broad-winged
Hawks. On April 30 at Dinosaur Ridge, Joyce Commercon reported 4
Broad-winged Hawks.
---On April 28 at North Arvada Middle School, Penney Martinez, Shannon
Cwik, Cathy Fennelly, and Phil Lyon reported 15 Cattle Egret. On April 29
at North Arvada Middle School, Gabriel Wiltse reported Cattle Egret.
---On April 29 at Belmar Park, Shannon Cwik and Penny Martinez reported
Greater White-fronted Goose.
---On April 29 at 12478 – 12508 S. Platte River road, Melissa Greulich
reported singing m American Redstart.
---On April 30 at Main Reservoir in Lakewood, Myron Gerhard reported
Black-throated Gray Warbler; Matt Clark, Susan Bonfiglio, and Karen Goetz
reported 69 Willet, Least Flycatcher, and f Black-throated Blue Warbler in
NW corner just west of Wodd Duck Pond.

KIOWA COUNTY:
---On April 28 at Neenoshe Reservoir, Brandon Percival, Dave Leatherman and
Janeal Thompson reported Field Sparrow and Piping Plover. On April 28 at
Neenoshe Reservoir, Matt Clark et al reported 3 Snowy Plover, 47 Mabled
Godwit, 2 Chihuahuan Ravens, and 3 Field Sparrows
---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. On April 29 at
Upper Queens/Neeskah Reservoir, Matt Clark et al reported Black-bellied
Plover and 2 Pectoral Sandpipers.

KIT CARSON COUNTY:
---On April 28 at Flager Reservoir SWA, Adam Vesely and Christine Alexander
reported Pectoral Sandpiper, Field Sparrow, and Orange-crowned Warbler.

LA PLATA COUNTY:
---On April 29 on CR 136 between CR 141 and CR 128, Ryan Votta reported
Cassin’s Kingbird.
---On April 30 at Pastorius Reservoir, Susan Allerton reported 2
Semipalmated Plovers.

LARIMER COUNTY:
---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 29 at Lory SP, Gerogia Doyle 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.
---On April 29 at CSU Environmental Learning Center, Lori Zabel reported f
Summer Tanager.
---On April 30 at Horsetooth Mountain OS, Arvind Panjabi reported
Virginia’s Warbler and Western Tanager.
---On April 30 at Dixon Reservoir, Brad Biggerstaff reported MacGillivray’s
Warbler.

LINCOLN COUNTY:
---On April 28 on Hwy 71 N of Limon, John and Sue Ewan reported
Rough-legged Hawk.
---On April 29 near Arriba on CR 41 S of CR 3F, John Vanderpoel, Carl
Winstead, Leslie Sours, and Sally Waterhouse reported 10 Mountain Plover,
1st year male Summer Tanager and Lazuli Bunting.
---On April 29 at Karval Lake SWA, Janet Anderson-Ray reported Nashville
Warbler.
---On April 30 on CR 3F from CR 41 to Hwy 63, David Bell and Siobhan
Darllington reported Rough-legged Hawk.

MESA COUNTY:
---On April 29 at Horsethief Canyon SWA, Carol Ortenzio reported Western
Wood-Pewee and Lazuli Bunting.
---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.
---On April 29 at Mcinnis Canyon Flume Trail, Carol Ortenzio reported
Ash-throated Flycatcher and lots of Black-throated Sparrows.
---On April 29 at Connected Lakes SP, Katey Buster reported Green Heron,
Plumbeous Vireo, and Lazuli Bunting.
---On April 30 at James M Robb Colorado River SP Pear Park Section, Annette
Collier, Diane and Jackson Trappett, David Rice and Hank Schoch, Kathleen
McGinley, Denise and Mark Vollmar reported Little Blue Heron.
---On April 30 at Highline Lake SP, Kathleen McGinley reported 3 Red-necked
Phalarope, 2 Black Tern, 10 Common Tern.
---On April 30 at No Thoroughfare Canyon, Ronda Woodward reported Plumbeous
Vireo and Black-throated Gray Warbler.

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 28 on Rd G (37.2287,-108.8824), Gregg Goodrich and DFO Field
Trip reported Bullock’s Oriole.
---On April 30 at Totten Reservoir, Eric Hendrickson reported Black-necked
Stilt, Sora, and Sandhill Crane.

MONTROSE COUNTY:
---On April 28 at Broad Canyon Landfill Rd, Coen Dexter and Brenda Wright
reported Gray Vireo.
---On April 29 at Tabaguach Preserve, Coen Dexter and Brenda Wright
reported 2 Yellow-breasted Chat and 2 Lazuli Bunting.
---On April 29 on River Road (San Miguel into Dolores) Coen Dexter and
Brenda Wright reported 9 Black Phoebe and Yellow-breasted Chat.
---On April 30 at Jim’s Cabin, Brenda Wright and Coen Dexter reported Gray
Vireo.

PROWERS COUNTY:
---On April 28 at Northgate Park, Brandon Percival reported Tundra Swan.
---On April 29 at Lamar Community College Woods, Dave Leatherman reported
White-eyed Vireo, pair of Rose-breasted Grosbeak, Nashville Warbler, Field
Sparrow, Dusky Flycatcher, Northern Cardinal, and Lazuli Bunting.

PUEBLO COUNTY:
---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.
---On April 30 at Signal Mountain ranch, Larry Moore reported m Scott’s
Oriole.
---On April 30 at Pueblo Reservoir, Brandon Percival reported Warbling
Vireo.

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.

SAN MIGUEL COUNTY:
---On April 30 in Telluride (town), Eric Hynes reported Solitary Sandpiper.

SEDGWICK COUNTY:
---On April 30 on CR 4 near Julesburg, Zachariah Hutchinson reported Upland
Sandpiper.

WELD COUNTY:
---On April 28 at Ireland Reservoir #5, Phillip McNicols, Cynthia
McNichols, Tracy Rackauhaus, and Rebecca Laroche reported Red-necked
Phalarope.
---On April 28 at Poudre 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.
---On April 29 at CR 134 and CR 111, Joshua Smith reported Sharp-tailed
Grouse and Grasshopper Sparrow.
---On April 29 at CR 111 between CR 134 and CR 135, Joshua Smith reported 2
Sharp-tailed Grouse and 6 Grasshopper Sparrows.
---On April 28 at Firestone Gravel Pits (View from road), Renee Casias
reported Common Tern; Chris Lynch, Robert Beauchamp, Gwen Moore, and Art
Hudak reported Caspian Tern.
---On April 29 at Pawnee NG Murphy’s Pasture area and auto tour stops 2 &
3, Joshua Smith reported Chestnut-collared Longspur, McCown’s Longspur, and
Grasshopper Sparrow.
---On April 29 at Lower Latham Reservoir, Gene Rutherford reported Glossy
Ibis and Grasshopper Sparrow.

YUMA COUNTY:
---On April 30 at CR 45 (40.2054,-102.3056) Joshua Smith reported Upland
Sandpiper, 2 Sage Thrashers and Grasshopper Sparrow.
---On April 30 on CR 45 (40.2166,-102.3265), Caleb Strand reported 21
Greater Prairie Chicken, 4 Cassin’s Sparrow, and 6 Grasshopper Sparrows.

DFO Field Trips:
For details please visit the DFO website dfobirds.org
Ken Caryl Valley Area
Monday, April 30
6:00 AM – 1:00 PM
David Suddjian (dsuddjian AT gmail.com; 831-713-8659)

Southeastern Colorado
Tuesday, May 1
4:00 Am – 7:00 PM
David Suddjian (dsuddjian AT gmail.com; 831-713-8659)

Northeastern Colorado
Friday, Mar 4 –Saturday, May 5
6:30 PM – 5:30 PM
Chuck Hundermark & Paul slingsby (chundertmark8 AT gmail.com; 303-604-0531)

eBird Hotspot Romp
Saturday, May 5
6:00 AM – 6:00 PM
Chris Goulart (cgoulart001 AT comast.net; 586-764-2126) This Trip is FULL

Reuter-Hess Reservoir
Saturday, May 5
8:00 AM – 1:00 PM
Tim Ryan and Diane Roberts (Tryan4thebirds AT yahoo.com; 720-545-5084)
This trip is FULL.

Denver City Park
Sunday, May 6
6:30 Am – 11:00 AM
Patraick O-Driscoll (patrodrisk AT gmail.com; 303-885-6955 (cell))

Good Birding,
Joyce Takamine
Boulder

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