Compiler: Joyce Takamine
e-mail: RBA AT cobirds.org
Date: September 9, 2017
This is the Rare Bird Alert for Saturday, September 9 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 changes.
Greater White-fronted Goose (Denver)
Bufflehead (Custer)
Wild Turkey (Baca, *Denver)
Horned Grebe (Park)
White-winged Dove (Arapahoe, Prowers)
BLACK-BILLED CUCKOO (*Bent)
Yellow-billed Cuckoo (Baca, Bent)
Greater Roadrunner (Baca, *El Paso, Kiowa)
Black Swift *Boulder, Pueblo)
Chimney Swift (Prowers)
Sandhill Crane (Costilla, Montezuma, Montrose, Routt, Weld)
American Golden Plover (*Washington)
Snowy Plover (*Alamosa)
Semipalmated Plover (*Washington)
Upland Sandpiper (Baca, El Paso, Yuma)
Stilt Sandpiper (*Alamosa, Jefferson, *Washington)
Sanderling (Larimer, *Washington)
Buff-breasted Sandpiper (*Washington)
Pectoral Sandpiper (El Paso, *Washington)
Semipalmated Sandpiper (El Paso, *Washington)
Short-billed Dowitcher (*Washington)
Solitary Sandpiper (*Boulder, El Paso, Jefferson, Montrose, San Miguel)
LONG-TAILED JAEGER (Park)
Sabine’s Gull (Custer, *Douglas, Jefferson)
Lesser Black-backed Gull (*Douglas, Jefferson, *Washington)
Caspian Tern (*Larimer, Washington)
Black Tern (Kiowa, Morgan)
Common Tern (Larimer, Park, *Washington)
Common Loon (Kiowa, Ouray)
Green Heron (Baca)
Mississippi Kite (Baca, Prowers)
Broad-winged Hawk (Baca)
Lewis’s Woodpecker (Montrose)
Red-headed Woodpecker (Weld, Yuma)
Red-belllied Woodpecker (Yuma)
Williamson’s Sapsucker (*Boulder, Gilpin, El Paso, Larimer)
Ladder-backed Woodpecker (*El Paso, Pueblo)
American Three-toed Woodpecker (Boulder, Gunnison, Larimer)
Merlin (Pueblo)
Least Flycatcher (Baca, Bent, El Paso)
Gray Flycatcher (Montrose)
Black Phoebe (Jefferson, Montrose)
Eastern Phoebe (Baca, Prowers)
Cassin’s Kingbird (El Paso, Montezuma)
Blue-headed Vireo (Baca, *Bent, El Paso, Pueblo, Weld)
Red-eyed Vireo (Baca, Bent, Powers)
Chihuahuan Raven (El Paso)
Purple Martin (Prowers)
Bewick’s Wren (El Paso)
Blue-gray Gnatcatcher (Baca, Bent, El Paso, Mesa, *Washington, Weld)
Curve-billed Thrasher (*El Paso)
American Pipit (Mesa)
Cassin’s Finch (Mesa)
Evening Grosbeak (Kiowa)
McCown’s Longspur (Weld)
Ovenbird (*Alamosa, Baca, Bent, Weld)
Northern Waterthrush (*El Paso, Jefferson, *Mesa)
Golden-winged Warbler (*Ouray)
Blue-winged Warbler (Weld)
Black-and-white Warbler (El Paso, Pueblo, *Washington, Weld)
Prothonotary Warbler (Baca)
Tennessee Warbler (Adams, Baca, *El Paso, *Weld)
Nashville Warbler (Baca, El Paso, Jefferson, *Weld)
American Redstart (Baca, Bent, Boulder, El Paso, *Washington, Weld)
Northern Parula (*Washington)
Magnolia Warbler (Bent, Larimer)
Bay-breasted Warbler (*Washington)
Chestnut-sided Warbler (Baca, *Boulder, Custer, Prowers)
Blackpoll Warbler (Pueblo)
Black-throated Green Warbler (*Pueblo)
Cassin’s Sparrow (*El Paso)
Clay-colored Sparrow (Arapahoe, Baca, *Boulder, Douglas, Eagle, *El Paso,
Jefferson, Mesa, *Weld)
Brewer’s Sparrow (Arapahoe, *Boulder, *El Paso, Pueblo)
Field Sparrow (Weld)
Lark Bunting (Boulder, Chaffee, El Paso, *Summit, Weld)
Grasshopper Sparrow (Boulder)
Fox Sparrow (San Juan)
Northern Cardinal (Prowers)
Dickcissel (El Paso, Pueblo, *Weld)
Bobolink (Boulder)
Baltimore Oriole (Prowers, Weld, Yuma)
ADAMS COUNTY:
---On September 5 at Barr Lake Banding Station, Meredith McBurney reported
banding Tennessee Warbler and Clay-colored Sparrow. On September 6 at Barr
Lake Banding Station, Meredith McBurney reported that the Tennessee Warbler
continues near the banding station.
ALAMOSA COUNTY:
--- On September 3 at Blanca Wetlands NWR, JoAnn Riggle reported Snowy
Plover. On September 7 at Blanca Wetlands NWR, John Rawinski reported few
Snowy Plovers and Stilt Sandpiper.
---On September 8 at N end of Cattails Golf Course, John Rawinski reported
Ovenbird.
ARAPHAOE COUNTY:
---On September 4 at Cherry Creek SP Pelican Point, Ben Sampson reported
Clay-colored Sparrow.
---On September 6 at Cherry Creek SP South End, David Hill and Cynthia
Madsen reported White-winged Dove, 2 Clay-colored Sparrows, and 2 Brewer’s
Sparrows.
BACA COUNTY:
---On September 3 in town of Walsh, Steve Mlodinow reported Mississippi
Kite.
---On September 3 at Turk’s Pond SWA, Steve Mlodinow and David Dowell
reported Broad-winged Hawk, American Redstart, and 5 Clay-colored Sparrows.
---On September 3 at Two Buttes SWA below the dam, Steve Mlodinow and David
Dowell reported Wild Turkey, Upland Sandpiper, 3 Greater Roadrunners,
Yellow-billed Cuckoo, Least Flycatcher, Eastern Phoebe, Blue-headed Vireo,
Blue-gray Gnatcatcher, 3 American Redstart, 3 Chestnut-sided Warblers,
Ovenbird, Tennessee Warbler, and Nashville Warbler. On September 5 at Two
Buttes Reservoir below dam, Brandon Percival reported Prothonotary Warbler,
Blue-headed Vireo, Great Crested Flycatcher, Tennessee Warbler, Red-eyed
Vireo, 3 American Redstarts, Ovenbird, Least Flycatcher, Green Heron.
BENT COUNTY:
---On September 4 at Tempel Grove, Dave Leatherman reported American
Redstart, Great Crested Flycatcher, and Yellow-billed Cuckoo. On September
5 at Melody Tempel Grove, Brandon Percival reported 2 Great Crested
Flycatcher, Blue-headed Vireo, Red-eyed Vireo, Blue-gray Gnatcatcher, 2
Ovenbird, American Redstart. On September 7 at Tempel Grove, Duane Nelson
reported Yellow-bellied Flycatcher and hatch year f Magnolia Warbler, 2
American Redstarts. On September 8 at Tempel Grove, John Drummond reported
juv BLACK-BILLED CUCKOO and Blue-headed Vireo.
---On September 5 at Hasty Campground, Brandon Percival reported 2 American
Redstart, Red-eyed Vireo.
BOULDER COUNTY:
---On September 3 at Rocky Mountain NP Ouzel Falls, Aaron and Emil Yappert
reported 4 Black Swifts (1 on nest, 3 flying) and American Three-toed
Woodpecker. On September 6 at Rocky Mountain NP Ouzel Falls, Myron Gerhard
reported Black Swift on nest.
---On September 5 at Golden Ponds Park and Nature Area, David Dowell
reported 2 American Redstarts.
---On September 6 at 66th and Marshall Road, Christian Nunes reported
Grasshopper Sparrow, 12 Clay-colored Sparrows, 3 Brewer’s Sparrows, and 5
Lark Buntings.
---On September 8 at Walden/Sawhill Ponds, Ted Floyd reported imm
Williamson’s Sapsucker, 3 Clay-colored Sparrows, 2 Brewer’s Sparrows; Mark
Holmgren and Elena Klaver reported 2 Solitary Sandpipers, Chestnut-sided
Warbler, and Brewer’s Sparrow.
CHAFFEE COUNTY:
---On September 6 on CR 300 outside of Buena Vista, Greg Levandoski
reported 5 Lark Bunting.
COSTILLA COUNTY:
---On September 5 at Smith Reservoir, JoAnn Riggle reported 3 Sandhill
Cranes.
CUSTER COUNTY:
---On September 3 at Lake DeWeese, Cheryl Teuton and Dan Brooke reported m
Bufflehead and juv Sabine’s Gull. On Septmeber 4 at Lake DeWeese, Brandon
Percival reported juv Sabine’s Gull. On September 6 at DeWeese Reservoir,
Rich Miller reported Sabine’s Gull and juv Chestnut-sided Warbler next to
the dam.
DENVER COUNTY:
---On September 4 at Bluff Lake NC, Chris Rurik and his DFO Field Trip
reported Wild Turkey. On September 8 at Bluff Lake Nature Center, Andrew
Fontenot reported Wild Turkey.
---On September 5 at Denver City Park Duck Lake, Baila Zohari reported
Greater White Fronted Goose.
DOUGLAS COUNTY:
---On September 3 at Chatfield SP Marina Sandspit, Joey Kellner reported
sub-ad Lesser Black-backed Gull and juv Sabine’s Gull; Myron Gerhard
reported 2 Sabine’s Gulls. On September 4 at Chatfield SP Marina Sandspit,
Bez Bezuidenhout reported 2 Sabine’s Gulls, Lesser Black-backed Gull and 3
Clay-colored Sparrows; Art Hudak reported Lesser Black-backed Gull. On
September 8 at Chatfield SP Marina Sandspit, Chuck Aid and Michael Kiessig
reported Sabine’s Gull and Lesser Black-backed Gull.
EL PASO COUNTY:
---On September 5 at Fountain Creek Regional Park, David Tonnessen reported
Cassin’s Kingbird, Tennessee Warbler, Nashville Warbler, Clay-colored
Sparrow, and 2 Brewer’s Sparrows.
--- On September 4 at Clear Spring Ranch, Steve Brown reported Least
Flycatcher and ad Clay-colored Sparrow. On September 5 at Clear Spring
Ranch, Steve Brown banded 2 Clay-colored Sparrows. On September 7 at Clear
Spring Ranch, Steve Brown reported banding ad Northern Waterthrush, and 2
Clay-colored Sparrows. On September 8 at Clear Spring Ranch, Steve Brown
reported ad f Tennessee Warbler, Northern Waterthrush, and Clay-colored
Sparrow.
---On September 2 at Chico Basin Ranch (fee area), David Tonnessen reported
Ladder-backed Woodpecker, 2 Least Flycatchers, 2 Curve-billed Thrashers, 2
Clay-colored Sparrows, and 5 Brewer’s Sparrows. On September 4 at Chico
Basin Ranch, Monday Birders reported Upland Sandpiper, f Williamson’s
Sapsucker, 2 Ladder-backed Woodpeckers, Curve-billed Thrasher, f
Black-and-white Warbler, 6 Clay-colored Sparrows, 14 Brewer’s Sparrows and
3 Dickcissel. On September 4 at Chico Basin ranch, Aaron Yappert reported
Curve-billed Thrasher, Black-and-white Warbler, and 2 Clay-colored
Sparrows. On September 5 at Chico Basin Ranch, cathy Bondy reported
Ladder-backed Woodpecker, 2 Curve-billed Thrasher, Black-and-white Warbler,
and American Redstart; John Drummond and Aitken Audubon reported 2
Ladder-backed Woodpecker, Bewick’s Wren, Blue-gray Gnatcatcher, 2 American
Redstarts (1ad m, 1 imm m), Cassin’s Sparrow, Clay-colored Sparrow, and
Lark Bunting. On September 8 at Chico Basin Ranch, Norm Lewis reported
Ladder-backed Woodpecker, Curve-billed Thrasher, 4 Cassin’s Sparrows,
Clay-colored Sparrow, and 2 Brewer’s Sparrows; Aaron Yappert reported 2
Ladder-backed Woodeckers, and Aaron Yappert reported Ladder-backed
Woodpecker, Red-eyed Vireo, and Clay-colored Sparrow.
---On September 2 on Hanover Road, David Tonnessen reported Greater
Roadrunner, Chihuahuan Raven, Clay-colored Sparrow, and 6 Brewer’s
Sparrows. On September 5 on Hanover Road in Fountain, Diane Roberts
reported Ladder-backed Woodpecker and Chihuahuan Raven. On September 8 on
Hanover Road, Norm Lewis reported Greater Roadrunner.
---On September 4 at Ramah Reservoir SWA, Rob Hinds reported 2 Pectoral
Sandpipers and Semipalmated Sandpiper.
---On September 7 in a huge field at east end of Pike’s Peak Ave in
Colorado Springs, Eric Eaton reported Lewis’s Woodpecker.
---On September 6 at Pulpit Rock Park, Alan Versaw reported Blue-headed
Vireo, 6 Blue-gray Gnatcatchers and Clay-colored Sparrow.
GILPIN COUNTY:
---On September 4 at Golden Gate Canyon SP , Andrew Fontenot reported f
Williamson’s Sapsucker near beginning of Horseshoe Trail.
JEFFERSON COUNTY:
---On September 3 at Chatfield SP, Joey Kellner reported Black Phoebe N of
Swim Beach and Brian Johnson reported Black and Eastern Phoebe at Swim
Beach. On September 3 at Chatfield SP, Aaron Shipe reported Solitary
Sandpiper and Lesser Black-backed Gull. On September 4 at Chatfield SP
Swim Beach, Pablo Quezada reported Eastern Phoebe. On September 5 at
Chatfield SP Swim Beach, Loch Kilpatrick reported 2 Sabine’s Gulls, Black
Phoebe, Eastern Phoebe, Northern Waterthrush, Nashville Warbler, and
Clay-colored Sparrow; Phil Lyon reported Lesser Black-backed Gull. On
September 6 at Chatfield SP Swim Beach, Pablo Quezada and Dale Pate
reported Black Phoebe and Eastern Phoebe.
---On September 4 at Harriman Lake Park, Brian Johnson reported 3
Clay-colored Sparrows.
KIOWA COUNTY:
---On September 3 at Adobe Creek Reservoir (Blue Lake), Steve Mlodinow
reported Greater Roadrunner and Black Tern.
LARIMER COUNTY:
---On September 5 at Timnath Reservoir, Joe Mammoser reported 3 Caspian
Terns on sandspit on N shore. On September 8 at Timnath Reservoir, Joe
Mammoser reported 4 Caspian Terns.
---On September 3 in Rocky Mountain NP Upper Beaver Meadows, Luke Pheneger
reported juv Magnolia Warbler in restoration area north of parking lot.
---On September 2 in Rocky Mountain NP Hollowell Park, Luke and Tracy
Pheneger reported American Three-toed Woodpecker and Williamson’s Sapsucker.
---On September 2 Rocky Mountain NP Bear Lake, Luke Pheneger reported
American Three-toed Woodpecker.
---On September 3 at Lake Estes, Luke Pheneger reported Sanderling and 2
Semipalmated Sandpipers.
---On September 3 at Rocky Mountain NP Endovalley, Luke Pheneger reported
American Three-toed Woodpecker.
MESA COUNTY:
---On September 5 at Grand Junction Wildlife Area, Mike Henwood reported 2
Clay-colored Sparrows (ad, juv).
---On September 6 at Vega Reservoir and Vega SP, Mike Henwood reported 2
Blue-gray Gnatcatchers, American Pipit, and 4 Cassin’s Finches.
---On September 8 at Horsethief Canyon SWA, Mike Henwood reported Northern
Waterthrush.
MONTEZUMA COUNTY:
---On September 3 at Totten Reservoir, Jason St. Pierre reported 2 Sandhill
Cranes east of boat launch.
---On September 4 at Mesa Verde NP Wetherill Mesa, Stanton Hunter reported
Cassin’s Kingbird.
MONTROSE COUNTY:
---On September 5 at Cooper’s Ditch, Coen Dexter and Brenda Wright reported
Lewis’s Woodpecker, Black Phoebe, and 2 Sandhill Cranes.
---On September 5 at Airport Lake, Coen Dexter and Brenda Wright reported 3
Solitary Sandpipers.
OURAY COUNTY:
---On September 8 at Ridgway Banding Station, Linnea Rowse reported imm F
Golden-winged Warbler.
PARK COUNTY:
---On September 3 at Antero Reservoir, Loch Kilpatrick and Glenn Walbek
reported 10 Horned Grebes and LONG-TAILED JAEGER. On September 4 at Antero
Reservoir, Joel Adams reported LONG-TAILED JAEGER.
---On September 3 at Eleven Mile Reservoir, Loch Kilpatrick and Glenn
Walbek reported Common Loon and 2 Horned Grebes.
PROWERS COUNTY:
---On September 2 at Lamar Community College Woods north end, Dave
Leatherman reported Great Crested Flycatcher, f-type Purple Martin, and a
few Mississippi Kites. On September 4 at Lamar Community College Woods,
Dave Leatherman reported Chestnut-sided Warbler (1st fall f), Chimney
Swift, and Northern Cardinal.
---On September 5 at 14th and Parkway in Lamar, Dorothy Russell reported
Great Crested Flycatcher, Red-eyed Vireo and 2 Baltimore Orioles.
PUEBLO COUNTY:
---On September 2 in Colorado City, Dave Silverman and Brandon Percival
reported 3 Black Swifts at Lake Beckwith and Brandon reported Dickcissel
behind TruValue Hardware.
---On September 2 at Chico Basin Ranch, Rose Pond area, Robb Hinds reported
4 Ladder-backed Woodpeckers, Blue-headed Vireo, and 5 Brewer’s Sparrows.
On September 5 at Chico Basin Ranch, Kevin Ash reported Dickcissel.
---On September 7 at Cottonwood Picnic Area below Pueblo Reservoir dam by
the parking lot, Brandon Percival reported Black-throated Green warbler and
Black-and-white Warbler. On Septmeber 8 at Cottonwood Picnic Area below
Pueblo Reservoir day, Brandon Percival reported Black-throated Green
Warbler.
---On September 7 at Cattail Crossing Pond in Pueblo, Brandon Percival
reported Blackpoll Warbler.
ROUTT COUNTY:
---On September 4 at Morgan Bottoms Rd, Ted Floyd reported a “plenitude” of
Sandhill Cranes.
SAN MIGUEL COUNTY:
---On September 4 at Snyder’s Pond, George Steel reported Solitary
Sandpiper.
---On September 4 at CR 44Z north farm pond, Eric Hynes reported Solitary
Sandpiper.
SUMMIT COUNTY:
---On September 8 at Dillon Reservoir Frisco Lake front Trails, Nick Moore
reported f Lark Bunting.
WASHINGTON COUNTY:
---On September 9 at Prewitt Reservoir, Glenn Walbek reported 5
Semipalmated Plovers, 75 Stilt Sandpipers, 3 Sanderlings, Buff-breasted
Sandpiper, 29 Pectoral Sandpipers, 8 Semipalmated Sandpipers, Short-billed
Dowitcher, Lesser Black-backed Gull, Common Tern, 2 Black-and-white
Warblers, 3 American Redstarts, Northern Parula, Bay-breasted Warbler;
Kathy Mihm Dunning et al reported American Golden Plover, 3 Semipalmated
Plover, 10 Stilt Sandpipers, Buff-breasted Sandpiper, 2 Pectoral
Sandpipers, 2 Semipalmated Sandpipers.
---On September 9 at Prewitt Inlet Canal grove, Kathy Mihm Dunning et al
reported 2 Blue-gray Gnatcatchers, Northern Parula, Bay-breasted Warbler.
WELD COUNTY:
---On September 3 at Norma’s Grove, Gene Rutherford reported 2 Sandhill
Cranes (flyover), Least Flycatcher, McCown’s Longspur in field east of
grove, north side, Blue-gray Gnatcatcher, 3 American Redstart (1 hatch yr
m, 2 f), 5 Clay-colored Sparrows, 8 Lark Bunting. On September 4 at
Norma’s Grove, Gene Rutherford reported Blue-gray Gnatcatcher, Ovenbird, m
Blue-winged Warbler, hatch yr Black-and-white Warbler, 2 American Redstarts
(f, hatch year m) and 2 Lark Buntings. On September 6 at Norma’s Grove,
Gene Rutherford and Loch Kilpatrick reported juv Red-headed Woodpecker,
Blue-headed Vireo and f-type American Redstart. On September 7 at Crow
Valley CG, Cynthia Kristensen reported Ovenbird.
---On September 5 at Crow Valley CG, Gene Rutherford reported Blue-gray
Gnatcatcher, American Redstart, and Baltimore Oriole. On September 8 at
Crow Valley CG, Joey Kellner and Norm Erthal reported Tennessee Warbler and
Nashville Warbler.
---On September 6 at Cr 57 N of Hwy 14, Loch Kilpatrick reported Field
Sparrow, 3 Clay-colored Sparrows, and 2 Lark Buntings.
---On September 7 at CR 57 S of CR 96 in trees by bridge, Gene Rutherford
reported hatch year f Tennessee Warbler, 2 Clay-colored Sparrows, and Lark
Bunting.
---On September 8 at Behrens Reservoir, Gene Rutherfold reported Dickcissel
and 2 Clay-colored Sparrows.
YUMA COUNTY:
---On September 1 at Hale Ponds, Steve Mlodinow reported Upland Sandpiper,
6 Red-headed Woodpeckers, 3 Red-breasted Woodpeckers, 3 Least Flycatchers,
9 Clay-colored Sparrows, 2 Brewer’s Blackbirds, 5 Baltimore Orioles.
Denver Field Ornithologists Field Trips:
The DFO Field Trip for Saturday, September 9 will be to Joder Ranch led by
Chuck Hundertmark (chundertmark8 AT gmail.com; 303-604-0531) From US 36 on
north side of Boulder, take Lee Hill Drive west. After the road turns
north stay right onto Old Stage Road. At stop sign at Lefthad Canyon Drive
go straight and immediately turn into Buckingham Park Parking lot. Meet at
0730.
This is a moderate to difficult half-day hike of 4 miles. Bring water,
sunscreen, and snacks. Register online or contact leader.
The DFO Field Trip for Sunday, September 10 will be to Cherry Creek SP
Wetlands Loop led by Karen von Saltza and Bill Wuerthele (kvonsaltza AT
yahoo.com; 303-941-4881). Meet at 0800 at Prairie Loop lot Cherry Creek
Sp. From either park entrance, follow Lake View Rd to the Prairie Loop
that is located at the south rim of the reservoir. State Parks pass or day
pass required.
This is a half-day of walking that passes through most of the
important habitats found in the park over a distance of about 3 miles.
Trails could be slippery or muddy. Bring water and snacks; lunch is
optional. Beginning birders are welcome.
For more information on the field trips go to dfobirds.org.
Good Birding,
Joyce Takamine
Boulder
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