Date: 10/21/18 3:23 am
From: Joyce Takamine <jabirujt...>
Subject: [cobirds] Colorado Rare Bird Alert, 21 October 2018
Compiler: Joyce Takamine
e-mail: RBA AT cobirds.org
Date: October 21, 2018
This is the Colorado Rare Bird Alert for Sunday, October 21 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)

Snow Goose (*Arapahoe)
Cackling Goose (*Arapahoe *Boulder, *Jefferson, *Larimer)
Wood Duck (Custer)
Cinnamon Teal (*Araphoe)
Surf Scoter (*Adams, *La Plata)
White-winged Scoter (*Arapahoe)
Black Scoter (*Adams)
Common Goldeneye (*Boulder,*Larimer, Park)
Hooded Merganser (Adams, Arapahoe, Boulder)
Red-breasted Merganser (*Adams, *Boulder, Jefferson, *Larimer, *Weld)
Horned Grebe (Denver, Park)
Red-necked Grebe (*Larimer)
Sandhill Crane (La Plata)
American Avocet (*Adams, *La Plata, *Park)
Black-bellied Plover (*Adams)
American Golden-Plover (*Adams, *Boulder, Summit)
Stilt Sandpiper (*Boulder, Larimer, *Weld)
Sanderling (*Adams, Jefferson)
Baird’s Sandpiper (*La Plata, *Larimer)
Least Sandpiper (*Boulder, *Larimer)
Pectoral Sandpiper (Douglas, El Paso,*Larimer, *Weld)
Semipalmated Sandpiper (Weld)
Short-billed Dowitcher (El Paso)
Long-billed Dowitcher (*Adams, *Boulder, Custer, *La Plata, *Larimer,
*Park, *Weld)
Spotted Sandpiper (*Adams, *Arapahoe)
Lesser Yellowlegs (*Adams, *Larimer, *Weld)
Greater Yellowlegs (*Boulder, Custer, *Larimer, *Park, *San Miguel, Summit,
*Weld)
Wilson’s Phlaraope (Adams)
Bonaparte’s Gull (Jefferson, La Plata, Mesa, *San Miguel, *Weld)
Franklin’s Gull (*Adams, *Araphoe, Jefferson,*Larimer, *Park, Rio Grande,
Weld)
Mew Gull (Boulder)
Iceland Gull (*Larimer)
Lesser Black-backed Gull (*Adams, *Arapahoe, *Larimer, Park)
Forster’s Tern (*La Plata, *Larimer, Montezuma, Park)
Red-throated Loon (*Weld)
Pacific Loon (*Denver, Larimer)
Common Loon (*Adams, *Arapahoe, *Denver, Larimer, Montezuma, *San Miguel,
*Weld)
Osprey (*Fremont)
HARRIS’S HAWK (*Larimer)
Broad-winged Hawk (*El Paso)
Swainson’s Hawk (*Larimer)
Burrowing Owl (Summit)
Lewis’s Woodpecker (Boulder, *La Plata, *San Miguel)
Red-naped Sapsucker (*Boulder, Eagle)
Merlin (*Eagle)
Hammond’s Flycatcher (*Montrose)
Gray Flycatcher (Jefferson)
Cordilleran Flycatcher (Larimer, Montezuma)
Say’s Phoebe (*Adams, *Weld)
Scissor-tailed Flycatcher (El Paso)
Loggerhead Shrike (El Paso)
Northern Shrike (Larimer)
Pinyon Jay (Custer)
Steller’s Jay (*Eagle, Jefferson, Larimer)
Woodhouse’s Scrub-Jay (La Plata, *Mesa, Montrose)
Clark’s Nutcracker (Custer)
Chihuahuan Raven (Kiowa)
Common Raven (*Adams)
Barn Swallow (*La Plata, Montezuma)
Juniper Titmouse (*La Plata)
Bushtit (*Arapahoe, La Plata, Montrose)
Rock Wren (Eagle, *Fremont)
House Wren (El Paso)
Marsh Wren (Custer, Eagle, Moffat, *Weld)
Bewick’s Wren (*Montrose)
Blue-gray Gnatcatcher (*Mesa, Montrose)
American Dipper (Custer, Eagle, La Plata)
Ruby-crowned Kinglet (Adams, Boulder, Custer, *Eagle,* El Paso,*Fremont, La
Plata, *Mesa, *Moffat, Montezuma, *Montrose)
Mountain Bluebird (*Adams, Boulder, Custer, *Fremont, Jefferson, La Plata,
*Montrose, *Park, *San Miguel)
Hermit Thrush (El Paso, La Plata, Larimer)
Curve-billed Thrasher (El Paso)
Sage Thrasher (Larimer, *Weld)
American Pipit (*Adams, *Arapahoe, Custer, Eagle, Jefferson, *La Plata,
*Larimer, *San Miguel)
Red Crossbill (Custer)
Lapland Longspur (El Paso)
Chestnut-collared Longspur (Adams, El Paso)
Green-tailed Towhee (Boulder)
Canyon Towhee (El Paso)
Savannah Sparrow (Park)
Clay-colored Sparrow (Custer)
Brewer’s Sparrow (Montrose)
Vesper Sparrow (*San Miguel)
Fox Sparrow (Larimer)
Lincoln’s Sparrow (Adams, *Boulder, Clear Creek, Custer, Eagle, *El Paso,
*Weld)
Swamp Sparrow (Custer)
White-throated Sparrow (*El Paso, Eagle, *Larimer, *Mesa, *Moffat, Montrose)
Harris’s Sparrow (*Boulder,* Larimer)
Rusty Blackbird (Eagle)
Orange-crowned Warbler (Douglas, Eagle, *Larimer, Ouray)
Common Yellowthroat (*Eagle, *El Paso, Custer, Mesa)
American Redstart (*Weld)
Hooded Warbller (*Eagle)
Magnolia Warbler (Boulder)
Palm Warbler (*Boulder, *San Miguel)
Townsend’s Warbler (Eagle, La Plata, *Mesa, *Moffat, Pueblo)
Wilson’s Warbler (*Eagle, La Plata, Mesa)
Western Tanager (Boulder, Pueblo)
Rose-breasted Grosbeak (Pitkin)

ADAMS COUNTY:
---On October 19 at Rocky Mountain Arsenal NWR, Sarah Leavesley, Joe Chen,
Mark Obascik, Gwen Moore, and Pablo Quezada reported Surf Scoter, 7 Hooded
Merganser, American Golden-Plover (Lower Derby), 6 Long-billed Dowitcher,
Spotted Sandpiper, Wilson’s Phalarope, and 2 Mountain Bluebirds. On
October 20 at Rocky Mountain Arsenal NWR, Spencer England, Adam Vesely,
Diane Roberts, Brian Johnson, James McCall, and Mark Chavez reported Surf
Scoter, 9 Long-billed Dowitscher, Lesser Yellowlegs, and 4 Mountain
Bluebirds.
---On October 19 at 5122 CR 29 in Bennett, Logan Parr reported
Chestnut-collared Longspur.
---On October 20 at McKay Lake, Matt Hofeditz reported Red-breasted
Merganser, Common Loon, and Say’s Phoebe.
---On October 20 at Barr Lake Neidrach Trail and Visitor Center, Ira and
Tammy Sanders reported 2 American Avocet, 3 Black-bellied Plover, American
Golden-Plover, 2 Sanderling, 25 Long-billed Dowitcher, 4 Lesser Yellowlegs,
Franklin’s Gull, 2 Lesser Black-backed Gull, and 5 American Pipit.
---On October 20 at Jim Baker Reservoir, Bruce Snyder reported Spotted
Sandpiper and 2 Lesser Yellowlegs; Lorraine Lanning reported Black Scoter.
---On October 20 at Clear Creek Valley Park, Bruce Snyder reported Black
Scoter (f-type) and 9 Long-billed Dowitchers.

ARAPAHOE COUNTY:
---On October 19 at Centennial Park, Crystal Wilson reported 2 Hooded
Merganser and Spotted Sandpiper. On October 20 at Centennial Park, Edward
Donnon reported Spotted Sandpiper.
---On October 20 at Aurora Reservoir, Matt Hofeditz reported 29 Snow Geese,
Cackling Goose, 3 White-winged Scoter, 10 Franklin’s Gull, Lesser
Black-backed Gull, 2 Common Loon, 3 American Pipit.
---On October 20 at Ketring Park and Lake, Edward Donnan reported f
Cinnamon Teal land 10 Bushtit.

BOULDER COUNTY:
---On October 19 at Prince Lake #2, Ron Bolton, John Haycraft, and Charlie
Chase reported American Golden-Plover, Stilt Sandpiper, and 8 Long-billed
Dowitcher. On October 20 at Prince Lake #2, Steve Frye and several other
birders reported American Golden-Plover, 5 Stilit Sandpipers, and 7
Long-billed Dowitcher.
---On October 19 at Green Mountain Cemetery in Boulder, Bill Kaempfer
reported Lewis’s Woodpecker and Ruby-crowned Kinglet.
---On October 19 at Valmont Reservoir Complex, Ted Floyd reported 23
Cackling Goose, 2 Hooded Merganser, 22 Red-breasted Merganser, 3 Greater
Yellowlegs, Ruby-crowned Kinglet, 2 Mountain Bluebird, Lincoln’s Sparrow,
and Green-tailed Towhee. On October 20 at Valmont Reservoir Comlex,
Richard Trinkner, Jack and Ryan Bushong reported 20 Cackling Geese.
---On October 19 in Louisville Paula Hansley reported 1st winter Harris’s
Sparrow on her patio. Birders are welcome. Call her at 720-890-2628 for
details. On October 20 Paula Hansley and David Waltman reported 3 Harris’s
Sparrows and Lincoln’s Sparrow.
---On October 19 at Boulder Creek and University of Colorado Campus, Nathan
Pieplow reported Magnolia Warbler about 25 yards W of footbridge on S side
of creek.
---On October 20 at Twin Lakes, Maureen Blackford reported Least Sandpiper,
4 Long-billed Dowitcher, and Greater Yellowlegs.
---On October 20 at McIntosh Lake, Todd Deininger reported Common Goldeneye.
---On October 20 at Eldorado Canyon SP, Steve Mlodinow reported Red-naped
Sapsucker.
---On October 20 at CU East Campus –Confluence Ponds and Skunk Creek, Peter
Gent and Holdern Maxfield reported Palm Warbler (western).
---On October 20 at Hecla Lake, Maureen Blackford reported 10 Cackling
Goose.
---On October 20 at Dodd Reservoir, Luke Pheneger reported 20 Cackling
Geese.

CUSTER COUNTY:
---On October 19 at DeWeese Reservoir, Joel and Dale Adams and Jerry DeBoer
reported 2 Wood Duck, 39 Long-billed Dowitcher, 12 Greater Yellowlegs, 10
Pinyon Jay, Clark’s Nutcracker Marsh Wren, 2 American Dipper, Ruby-crowned
Kinglet, Mountain Bluebird, 5 American Pipit, 2 Red Crossbill, Clay-colored
Sparrow, Lincoln’s Sparrow, Swamp Sparrow, 2 Common Yellowthroat.

DENVER COUNTY:
---On October 20 at Marston Reservoir West End, Christine Alexander, Ginny
Bergstrom, Bill Kaempfer, and Pablo Quezada reported Pacific Loon and 4
Common Loon.

EAGLE COUNTY:
---On October 19 at Walking Mountains Science Center, Aidan Goldie and Eric
Culbertson reported 3 Ruby-crowned Kinglet, American Pipit, Lincoln’s
Sparrow, and Wilson’s Warbler.
---On October 19 on N Main St in Minturn, Eric Culbertson, Jennifer Austin
and William Prusse reported Red-naped Sapsucker, 3 Steller’s Jay,
Ruby-crowned Kinglet, 2 American Dipper, White-throated Sparrow, Lincoln’s
Sparrow, Rusty Blackbird, Hooded Warbler, and 2 Wilson’s Warbler. On
October 20 at N Main in Minturn, Eric Culbertson reported Steller’s Jay,
Ruby-crowned Kinglet, and Hooded Warbler.
---On October 19 at Lake Creek Village Wetlands, Eric Culbertson reported
Rock Wren, Marsh Wren, 2 Ruby-crowned Kinglet, Lincoln’s Sparrow,
Orange-crowned Warbler, Townsend’s Warbler, and 2 Wilson’s Warbler. On
October 20 at Lake Creek Village Wetlands, Eric Culbertson reported Merlin
and Wilson’s Warbler,
---On October 20 at Gypsum Ponds, Eric Culbertson reported Common
Yellowthroat (f-type).

EL PASO COUNTY:
---On October 19 at Clear Spring Ranch, Steve Brown reported Turkey Vulture
and banded 3 Ruby-crowned Kinglet. On October 20 at Clear Spring Ranch,
Steve Brown reported Broad-winged Hawk (flyover), 2 Ruby-crowned Kinglet
(banded), 2 White-throated Sparrow (1 juv, 1ad) (Banded), and 2 Lincoln’s
Sparrow (juv) (banded), and Common Yellowthroat (1f juv) (banded).
---On October 29 at Squirrel Creek Road Reservoir, Jim Merritt reported
Pectoral Sandpiper.
---On October 19 at Chico Basin Ranch, Jim Merrit, Joel and Dale Adams
reported Loggerhead Shrike, Ruby-crowned Kinglet, 17 Mountain Bluebird,
Hermit Thrush, 2 Curve-billed Thrasher, Lincoln’s Sparrow, 3 Canyon
Towhee, Lapland Longspur, and 17 Chestnut-collared Longspur.

FREMONT COUNTY:
---On October 20 at Brush Hollow Reservoir, Jerry DeBoer reported Osprey,
Rock Wren, 2 Ruby-crowned Kinglet, and 14 Mountain Bluebird.

JEFFERSON COUNTY:
---On October 19 at Standley Lake and Park, Shannon Cwik reported 2
Red-breasted Merganser, Sandering, 2 Bonaparte’s Gull, 3 Franklin’s Gull,
27 Mountain Bluebird, and 2 American Pipit.
---On October 20 at Lake Arbor, Lorraine Lanning reported 30 Cackling Geese.

KIOWA COUNTY:
---On October 19 at CR 71 and CR M, Tony Leukering reported Chichuahuan
Raven.

LA PLATA COUNTY:
---On October 19 at Pastorius Reservoir, Susan Allerton and Ryan Votta
reported Surf Scoter, 2 Baird’s Sandpiper, 2 Long-billed Dowitcher,
Bonaparte’s Gull, 2 Forester’s Tern, Woodhouse’s Scrub-Jay, 2 Barn Swallow,
Juniper Titmouse, 14 Bushtit, 4 Ruby-crowned Kinglet, 5 Mountain Bluebird,
3 American Pipit, Townsend’s Warbler, 3 Sandhill Crane (flyover). On
October 20 at Pastorius Reservoir, Susan Allerton and Jason St. Pierre
reported Surf Scoter, 5 American Avocet, 2 Long-billed Dowitcher, 2
Forester’s Tern, Lewis’s Woodpecker, 2 Barn Swallow, 2 Juniper Titmouse,
and 2 American Pipit.
---On October 18 at Animas River—Huck Finn Pond and Hatchery Area, Ryan
Votta reported American Dipper, Ruby-crowned Kinglet, 2 Hermit Thrush, and
Wilson’s Warbler.

LARIMER COUNTY:
---On October 18 at Carriage Hills Estes Park, Steve Kingswood reported Fox
Sparrow (red) and White-throated Sparrow visiting his yard. Most of the
time they were behind the house (east side), near a storage shed and
Russian Olive. Steve welcomes birders to try for the sparrows. His
address is 2304 Carriage Drive. From the driveway, walk around the South
side of the house toward the storage Shed. The Russian Olive is just North
of the Shed. Please give feed back to Steve at steveandyoko AT gmail.com.
---On October 19 at Lonetree Reservoir, David Wade reported Red-necked
Grebe, Pacific Loon, Common Loon, and Hermit Thrush.
---On October 20 at Terry Lake, Andy Bankert and Caroline Olson reported 50
Cackling Geese, Long-billed Dowitcher and Iceland (Thayer’s) Gull.
---On October 20 at Arapahoe Ridge NA—Rigden Reservoir (Strauss Lake
Cabin), Edward Raynor reported Swainson’s Hawk and 25 American Pipit.
---On October 20 at Timnath Reservoir, Steve Summers, Andy Bankert, and
Carolyn Olson reported 150 Cackling Geese, 4 Baird’s Sandpiper, 9 Least
Sandpiper, 13 Pectoral Sandpiper, 25 Long-billed Dowitcher, Greater
Yellowlegs, Lesser Yellowlegs, Franklin’s Gull, 2 Orange-crowned Warbler.
---On October 20 at Fossil Creek Reservoir and Regional Open Space, Sean
Walters reported Common Goldeneye, Red-necked Grebe, Lesser Black-backed
Gull, Common Loon, and HARRIS’S HAWK (fly over).

MESA COUNTY:
---On October 19 at Highline Lake SP, Douglas Diekman reported Bonaparte’s
Gull, Osprey, 2 Blue-gray Gnatcatcher, 5 Ruby-crowned Kinglet, and Wilson’s
Warbler.
---On October 20 at Horsethief Canyon SWA, Drew Kelly reported 2
Woodhouse’s Scrub-Jay, 2 Blue-gray Gnatcatcher, 5 Ruby-crowned Kinglet,
White-throated Sparrow, and Townsend’s Warbler.

MOFFAT COUNTY:
---On October 19 at Loudy-Simpson Nature Trail, Bill Hopping reported Marsh
Wren. On October 20 at Loudy-Simpson Nature Trail, Jan Leonard reported
Ruby-crowned Kinglet, White-throated Sparrow, and Townsend’s Warbler.

MONTEZUMA COUNTY:
---On October 19 at Totten Reservoir, Erik Hendrickson reported 2 Forster’s
Tern, 2 Common Loon, 5 Barn Swallow, Ruby-crowned Kinglet.

MONTROSE COUNTY:
---On October 19 on old Hwy 90 through Silver Hawk Ranch, Coen Dexter and
Brenda Wright reported Hammond’s Flycatcher, 5 Woodhouse’s Scrub-Jay, 12
Bushtit, 2 Blue-gray Gnatcatcher, 6 Ruby-crowned Kinglet, 2 Brewer’s
Sparrow, White-throated Sparrow.
---On October 20 at Nucla Domestic Reservoir, Coen Dexter and Brenda Wright
reported Hammond’s Flycatcher, Bewick’s Wren, Ruby-crowned Kinglet, and 11
Mountain Bluebird.

PARK COUNTY:
---On October 19 at Antero Reservoir, Kevin Ash and Rebecca Laroche
reported Common Goldeneye ant 15 Horned Grebe; on the SE side, they
reported 3 Long-billed Dowitcher, Greater Yellowlegs.
---On October 19 at Elevenmile SP, Kevin Ash and Rebecca Laroche reported
Lesser Black-backed Gull.
---On October 20 at Spinney Mountain Reservoir, Alan Ketcham reported 80
Long-billed Dowitcher, American Avocet, Great Yellowlegs, Franklin’s Gull,
and 10 Mountain Bluebird.

PITKIN COUNTY:
---On October 19 at Midland Park is Aspen, Catherine Hagen reported
Rose-breasted Grosbeak.

SAN MIGUEL COUNTY:
---On October 20 at Miramonte Reservoir, Coen Dexter and Brenda Wright
reported 2 Greater Yellowlegs, 2 Bonaparte’s Gull, 2 Common Loon, Lewis’s
Woodpecker, 4 Mountain Bluebird, 15 American Pipit, 3 Vesper Sparrow, and
Palm Warbler.

SUMMIT COUNTY:
---On October 19 at Dillon Reservoir Giberson Bay, M Walt and Phil Lyon
reported American Golden-Plover, Greater Yellowlegs, and Burrowing Owl.

WELD COUNTY:
---On October 19 at Union Reservoir, Steve Mlodinow reported 2 Pectoral
Sandpiper, 29 Long-billed Dowitcher, Lesser Yellowlegs, 9 Bonaparte’s Gull,
Franklin’s Gull, Red-throated Loon, and 2 Common Loon. On October 20 at
Union Reservoir, Steve Mlodiow reported 2 Red-breasted Merganser,
Long-billed Dowitcher, Greater Yellowlegs, 7 Bonaparte’s Gull, Red-throated
Loon, and Common Loon.
---On October 19 at Baxter Lake, Steve Mlodinow reported 3 Stilt Sandpiper,
4 Pectoral Sandpiper, Greater Yellowlegs, and Lesser Yellowlegs. On
October 20 at Baxter Lake, Steve Mlodinow reported 4 Stilt Sandpiper, 2
Pectoral Sandpiper, 109 Long-billed Dowitcher, Greater Yellowlegs, Lesser
Yellowlegs, and Common Raven.
---On October 20 at Pawnee Buttes, Christian Hagenlocher reported Says’s
Phoebe.
---On October 20 at St Vrain Greenway Parking Lot, Rob Cassady reported
Sage Thrasher.
---On October 20 at Idaho Creek, Steve Mlodiow reported Marsh Wren,
Lincoln’s Sparrow, and American Redstart.

DFO Field Trips
For more details go to the DFO website

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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