Date: 10/17/18 3:00 am
From: Joyce Takamine <jabirujt...>
Subject: [cobirds] Colorado Rare Bird Alert, 17 October 2018
Compiler: Joyce Takamine
e-mail: RBA AT cobirds.org
Date: October 17, 2018
This is the Colorado Rare Bird Alert for Wednesday, October 17 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 is new)

Greater White-fronted Goose (*Baca)
American x Eurasian Wigeon (*Montezuma)
Storm Wigeon (*Montezuma)
Greater Scaup (*Arapahoe)
Surf Scoter (*La Plata)
Bufflehead (Adams, *Baca, Boulder, Fremont, Jefferson, La Plata, Larimer,
Rio Grande, *Summit)
Hooded Merganser (*Adams, *Boulder, Jefferson)
Red-breasted Merganser (Boulder, *Larimer)
Horned Grebe (*Arapahoe, *Denver)
Common Poorwill (El Paso)
White-throated Swift (Fremont, *Garfield)
Virginia Rail (*Larimer)
Sandhill Crane (El Paso, Fremont, Rio Grande, Teller)
Black-bellied Pover (*Boulder)
American Golden-Plover (*Arapahoe, *Boulder, *Jefferson, Larimer, *Summit)
Semipalmated Plover (Arapahoe, Boulder)
Killdeer (*Clear Creek)
Stilt Sandpiper (*Arapahoe, *Boulder)
Sanderling (Boulder, *Monezuma)
Pectoral Sandpiper (*Boulder, Douglas, Larimer)
Short-billed Dowitcher (*Boulder)
Lesser Yellowlegs (*Arapahoe)
Willet (*Summit)
Wilson’s Phalarope (Jefferson)
Red-necked Phalarope (Jefferson)
Bonaparte’s Gull (Adams, Arapahoe,)
Laughing Gull (La Plata)
Franklin’s Gull (*Arapahoe, *Boulder, Rio Grande)
Mew Gull (*Arapahoe, Boulder)
WESTERN GULL (*Arapahoe)
Lesser Black-backed Gull (Larimer)
Red-throated Loon (*Denver)
American White Pelican (*Clear Creek)
Snowy Egret (La Plata)
Green Heron (Fremont)
White-faced Ibis (*Arapahoe)
Osprey (Fremont, Ouray)
HARRIS’S HAWK (Larimer)
Acorn Woodpecker (*La Plata)
Red-belllied Woodpecker (Larimer)
Red-naped Sapsucker (Larimer)
Hammond’s Flycatcher (* Montrose)
Gray Flycatcher (El Paso, *Jefferson)
Dusky Flycatcher (La Plata)
Cordilleran Flycatcher (Larimer, Montezuma)
Black Phoebe (La Plata)
Eastern Phoebe (Jefferson)
Scissor-tailed Flycathcer (*El Paso)
Steller’s Jay (*Boulder, *Clear Creek, *El Paso, *Garfieldm *Larimer)
Woodhouse’s Scrub-Jay (*El Paso, *Garfield, *Jefferson)
Clark’s Nutcracker (Ouray)
Juniper Titmouse (*La Plata)
Bushtit (La Plata, Ouray)
Rock Wren (*Boulder, *Larimer)
Marsh Wren (*Larimer)
Blue-gray Gnatcathcer (*El Paso)
Ruby-crowned Kinglet (Adams, *Clear Creek, *Garfield,* Jefferson, *La
Plata, *Larimer, *Mesa, *Montrose, Ouray, San Juan)
Eastern Bluebird (Larimer)
Mountain Bluebird (Boulder,*Clear Creek, *El Paso, Jefferson, La Plata,*
Larimer, *Montrose, Ouray, Teller)
Hermit Thrush (*Boulder, *Denver, El Paso, *Jefferson, Larimer)
Curve-billed Thrasher (*El Paso)
Sage Thrasher (Fremont, *Mesa)
American Pipit (*Arapahoe, *Clear Creek,*El Paso, Jefferson, *Larimer,
*Montrose, Ouray, *Summit)
Sprague’s Pipit (Larimer)
Lesser Goldfinch (*Denver)
McCown’s Longspur (*Boulder)
Green-tailed Towhee (*La Plata)
Canyon Towhee (*El Paso)
Savannah Sparrow (*La Plata, *Larimer, Park)
Brewer’s Sparrow (*Clear Creek, Ouray)
Vesper Sparrow (*Jefferson)
Lark Sparrow (*Jefferson)
Field Sparrow (Boulder)
Sagebrush Sparrow (Ouray)
Fox Sparrow (*Boulder, *Larimer)
Lincoln’s Sparrow (Adams, *Clear Creek,*El Paso, Jefferson, *Larimer, San
Juan)
Swamp Sparrow (*Larimer)
White-throated Sparrow (Saguache)
Harris’s Sparrow (*Boulder, *El Paso)
Brown-headed Cowbird (Teller)
Orange-crowned Warbler (*Adams, *Clear Creek, Douglas, *Montrose, Ouray)
Common Yellowthroat (*Larimer, Mesa)
Palm Warbler (*Boulder)
Townsend’s Warbler (Gunnison, *La Plata, *Mesa, Pueblo)
Black-throated Green Warbler (*Clear Creek)
Wilson’s Warbler (*Boulder, Eagle, *La Plata, Larimer, Mesa, Montrose)
Western Tanager (Boulder, *Larimer, Pueblo)

ADAMS COUNTY:
---On October 15 at Ken Mitchell Park and OS, Adam Besely reported 5
Bufflehead and 2 Bonaparte’s Gull.
---On October 16 at Lowell Ponds (Clear Creek Valley Park), Gabriel Wiltse
reported 6 Hooded Merganser and Orange-crowned Warbler.

ARAPAHOE COUNTY:
---On October 15 at Cherry Creek SP Marina and nearby Dam Trail, Bez
Bezuidenhout, Don Beltz, and Gary Brower reported American Golden-Plover,
Semipalmated Plover, and Bonaparte’s Gull. On October 16 at Cherry Creek
SP in SW corner, Bob Righter reported 4 Lesser Yelllowlegs, Stilt
Sandpiper, and White-faced Ibis (flyover); Edward Donnan reported 2 Lesser
yellowlegs, White-faced Ibis (flyover) and 2 American Pipit. On October 16
at Cherry Creek SP—Pelican Point, Loch Kilpatrick reported American
Golden-Plover, WESTERN GULL (flyover) and American Pipit. On October 16 at
Cherry Creek Reservoir Lake Loop, Ben Sampson reported 2 Greater Scaup, 20
Horned Grebe, and 2 Lesser Yellowlegs. On October 16 at Pelican Point, Ben
Sampson reported Mew Gull and Franklin’s Gull.

BACA COUNTY:
---On October 16 at Walsh Water Treatment Plant, Tony Leukering reported
Greater White-fronted Goose, and 3 Bufflehead.

BOULDER COUNTY:
---On October 15 at Prince Lake #2, John Vanderpoel, Peter Burke, and Luke
Pheneger reported American Golden-Plover, 2 Stilt Sandpiper, and 1st cycle
Mew Gull. On October 16 at Prince Lake #2, Carl Starace, Ted Floyd, David
Ely, John Rutenbeck, Okamoto Keita Sin, David Haskell, Kathie Lehmanm and
Ginny Bergstrom reported Black-bellied Plover, American Golden-Plover, 3
Stilt Sandpiper, 2 Pectoral Sandpiper, Franklin’s Gull, and Mountain
Bluebird.
---On October 15 at Valmont Overlook/Legion Park, Ted Floyd, Luke Phenger,
and Peter Burke reported 7 Bufflehead, 8 Hooded Merganser, 16 Red-breasted
Merganser, Semipalmated Plover, Sanderling, 20 Mountain Bluebird, and Field
Sparrow.
---On October 15 at Boulder Creek and University of Colorado Campus, Nathan
Pieplow reported 10 Hermit Thrush, and Fox Sparrow (red). On October 16 at
Boulder Creek and University of Colorado Campus, Nathan Pieplow reported
Hermit Thrush and Fox Sparrow (red).
---On October 15 at Confluence Ponds and Skunk Creek on CU East Campus,
David Dowell reported Palm Warbler. On October 16 on CU East Campus near
Space Science Build in pines in parking lot, Mark Minner-Lee reported
Western Palm Warbler; also reported by David Dowell, Bill Kaempfer and
David Ely.
---On October 16 at Twin Lakes, Dan Zolmek reported 2 Short-billed
Dowitchers.
---On October 16 at Walden Ponds, Chuck Hundertmark reported 3 Hooded
Mergansers, Stilt Sandpiper, and Pectoral Sandpiper.
---On October 16 in Nederland (town), Brent Campos reported 3 Steller’s
Jay, Fox Sparrow, Harris’s Sparrow, and Wilson’s Warbler.
---On October 16 at Lagerman Reservoir, Ginny Bergstrom reported Rock Wren
and McCown’s Longspur.

CLEAR CREEK COUNTY:
---On October 16 at Idaho Springs (town), Chris Wood reported 7 Steller’s
Jay, 4 Ruby-crowned Kinglet, 3 American Pipit (flyover), Brewer’s Sparrow,
Lincoln’s Sparrow, Orange-crowned Warbler, and Black-throated Green Warbler.
---On October 16 at Georgetown Lake, Chris Wood reported Killdeer,
Steller’s Jay and Mountain Bluebird.
---On October 16 at Macy/Ruth Mill Park Idaho Springs, Scott Somershoe
reported American White Pelican and Steller’s Jay.

DENVER COUNTY:
---On October 16 at Marston Reservoir West End, Doug Kibbe, Mackenzie
Goldthwaite, and Gwen Moore reported 2 Horned Grebe and Red-throated Loon.
---On October 16 at Bear Creek Park, Doug Kibbe and Mackenzie Goldthwaite
reported 2 Hermit Thrush and 8 Lesser Goldfinch.

EL PASO COUNTY:
---On October 15 at Starsmore Discovery Center, Chris Brown reported Common
Poorwill, 35 Sandhill Cranes, 2 Steller’s Jay, Woodhouse’s Scrub-Jay, and
Hermit Thrush. Lincoln’s Sparrow, and Canyon Towhee.
---On October 16 at Red Rock Canyon OS, Jim Merritt reported Steller’s Jay,
10 Woodhouse’s Scrub-Jay, Harris’s Sparrow, Lincoln’s Sparrow, and Canyon
Towhee.
---On October 16 in Colorado Springs Monument Branch between Voyager and
I-25, Roger Massey reported 2 Steller’s Jay, Blue-gray Gnatcatcher, and
Hermit Thrush.
---On October 16 on Finch Road, David Tonnessen reported Scissor-tailed
Flycatcher, 6 Mountain Bluebird, Curve-billed Thrasher, and American Pipit.

FREMONT COUNTY:
---On October 15 at Canon City Riverwalk—Sell’s Lake to S Raynold Ave,
Jerry DeBoer reported 3 White-throated Swift, and Green Heron.
---On October 15 at Brush Hollow Reservoir, Jerry DeBoer reported 2
Bufflehead, 47 Sandhill Cranes, Osprey, and Sage Thrasher.

GARFIELD COUNTY:
---On Ocgtober 16 on ridge (39.533, -107,342) in Glenwood Springs, Rebecca
Weiss reported 5 White-throated Swift, Steller’s Jay, 4 Woodhouse’s
Scrub-Jay, and 4 Ruby-crowned Kinglet.

JEFFERSON COUNTY:
---On October 15 at Robert A Easton Regional Park, Elaine Wagner reported
American Golden-Plover and Mountain Bluebird. On October 16 at Robert A
Easton Regional Park, Tuesday Birders and Christine Alexander reported
American Golden-Plover.
---On October 15 at Harriman Lake Park, Phil Lyon and many other birders
reported 24 Bufflehead, 2 Hooded Merganser, American Golden-Plover, 5
Mountain Bluebird, American Pipit, Wilson’s Phalarope, and Red-necked
Phalarope. On October 16 at Harriman Lake Park, Doug Kibbe and Mackenzie
Goldthwaite reported 2 Lark Sparrow and Vesper Sparrow.
---On October 15 at Chatfield SP Audubon Center and Trails, Chris Wood
reported Eastern Phoebe, 12 Ruby-crowned Kinglet, 155 Mountain Bluebird,
Hermit Thrush, Lincoln’s Sparrow and Orange-crowned Warbler.
---On October 16 at Waterton Canyon from Waterton road to overhead pipes,
Tuesday Birders reported 6 Steller’s Jay and Western Tanager.
---On October 16 on Clear Creek Trail Golden, Tyler Wilson reported Gray
Flycatcher, 2 Woodhouse’s Scrub-Jay, Ruby-crowned Kinglet, and Hermit
Thrush.

LA PLATA COUNTY:
---On October 15 at Pastorius Reservoir, Susan Allerton reported 7
Bufflehead, Laughing Gull, Dusky Flycatcher, 10 Bushtit, 4 Mountain
Bluebirds, and Wilson’s Warbler. On October 16 at Pastorius Reservoir,
Susan Allerton and Jason St. Pierre reported 2 Surf Scoter, Ruby-crowned
Kinglet, Green-tailed Towhee, and Wilson’s Warbler; Lily Douglas reported
Acorn Woodpecker, Juniper Titmouse, 2 Ruby-crowned Kinglet and Savannah
Sparrow.
---On October 16 at Animas river—Huck Finn Pond and Hatchery area, Ryan
Volta reported 3 Ruby-crowned Kinglet, Townsend’s Warbler, and Wilson’s
Warbler.

LARIMER COUNTY:
--- On October 15 at Timnath Reservoir, Nick Komar reported 3 Pectoral
Sandpiper, 3 Lesser Black-backed Gull, Rock Wren, Marsh Wren, 8 Mountain
Bluebird, Hermit Thrush, 85 American Pipit, Lincoln’s Sparrow, and Wilson’s
Warbler.
---On October 14 at Arapahoe Bend NA—Rigden Reservoir (Strauss Cabin Lake)
Edward Raynor reported HARRIS’S HAWK at gravel pit, 40 Mountain Bluebird,
and 40 American Pipit. On October 15 at Arapahoe Bend NA—Rigden Reservoir
(Strauss Cabin Lake), Lori Zabel reported 10 Bufflehead, 2 Eastern
Bluebird, 25 American Pipit, and Sprague’s Pipit. On October 16 at
Arapahoe Bend NA—Rigden Reservoir (Strauss Cabin Lake), Nick Komar, David
Wade and Kevin Keirn reported Red-breasted Merganser, 5 Virginia Rail, 2
Marsh Wren, Ruby-crowned Kinglet, 53 Mountain Bluebird, 7 American Pipit,
Savannah Sparrow, 2 Lincoln’s Sparrow, Swamp Sparrow, and Common
Yellowthroat. On October 16 at Arapahoe Bend NA, Lori Zabel and Christine
Sparks reported Fox Sparrow (red).
---On October 15 at Lonetree Reseervoir, Nick Komar reported American
Golden-Plover.
---On October 15 at Grandview Cemetery, Luke Caldwell and Andy Bankert
reported Red-bellied Woodpecker. On October 16 at Grandview Cemetery,
David Wade reported Fox Sparrow (red).

MESA COUNTY:
---On October 16 at Colorado River SP – Fruita Section, Douglas Diekman
reported 8 Ruby-crowned Kinglet, Sage Thrasher, and Townsend’s Warbler.

MONTEZUMA COUNTY:
---On October 16 on mudflats west of boat launch at McPhee Reservoir, Erick
Hendrickson reported Sanderling. (Walk about 1 mile W of Launch Ramp with
scope)
---On October 16 at Cortez Industrial Pond, Erik Hendrickson reported Storm
Wigeon and apparent hybrid American X Eurasian Wigeon.

MONTROSE COUNTY:
---On October 15 at Chipeta Lake, Brenda Wright and Coen Dexter reported
Orange-crowned Warbler and 3 Wilson’s Warbler.
---On October 16 at Cooper’s Ditch, Coen Dexter and Brenda Wright reported
Hammond’s Flycatcher, 5 Ruby-crowned Kinglet, 22 Mountain Bluebird, 3
American Pipit, and Orange-crowned Warbler.

OURAY COUNTY:
---On October 15 at Ridgway Reservoir and SP, Coen Dexter and Brenda Wright
reported Osprey, Clark’s Nutcracker, 8 Bushtit, 2 Ruby-crowned Kinglet,
Mountain Bluebird, American Pipit, 2w Brewer’s Sparrow, 3 Sagebrush
Sparrows, and Orange-crowned Warbler.

RIO GRANDE COUNTY:
---On October 15 at Monte Vista NWR, Alan and MaryLynne Ketcham reported 4
Bufflehead (1m, 3f), 30 Sandhill Cranes, and Franklin’s Gull.

SAGUACHE COUNTY:
---On October 15 at Russell Lakes, John Cobb reported White-throated
Sparrow.

SAN JUAN COUNTY:
---On October 15 on Spud Lake and Trail, Lily Douglas reported 4
Ruby-crowned Kinglet and Lincoln’s Sparrow.

SUMMIT COUNTY:
---On October 16 at Dillon Reservoir Giberson Bay, M Walt reported 3
Bufflehead, Willet, and 6 American Pipit; Reed Gerdes reported American
Golden-Plover and Rock Wren.

TELLER COUNTY:
---On October 15 at 8415 – 8426 CR 11 Florissant, Anne Winters and Jason
Piertrzak reported 3 Sandhill Cranes (flyover), Mountain Bluebird, and 15
Brown-headed Cowbirds.

DFO Field Trips
For more details go to the DFO website
South-Central Colorado
Tuesday, October 16 – Wednesday October 17
5:00 AM – 7:00 PM
David Suddjian (dsuddjian AT gmail.com; 831-713-8659)

Second Creek Open Space
Saturday, October 20
7:00 AM – 11:30 AM
Patrick O’Driscoll )(patodrisk AT gmail.com; 303-885-6955 (cell))

Park County Reservoirs
Monday, October 22
David Suddjian (dsuddjian AT gmail.com; 831-713-8659
Northeastern Colorado
Tuesday, October 23
5:30 AM – 7:00 PM
David Suddjian (dsuddjian AT gmail.com; 831-713-8659)


Good Birding,
Joyce Takamine
Boulder

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