Date: 10/11/18 3:08 am
From: Joyce Takamine <jabirujt...>
Subject: [cobirds] Colorado Rare Bird Alert, 11 October 2018
Compiler: Joyce Takamine
e-mail: RBA AT cobirds.org
Date: October 11, 2018

This is the Colorado Rare Bird Alert for Thursday, October 11 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)

Mexican Duck (Huerfano)
Bufflehead (Huerfano, *Larimer, Mesa)
Horned Grebe (Montrose)
Northern Bobwhite (*Larimer)
Virginia Rail (Huerfano, *Larimer, Weld)
Sandhill Crane (Adams, *Arapahoe, Boulder, *Jefferson, *Larimer)
Pectoral Sandpiper (*Boulder, La Plata)
Spotted Sandpiper (*Larimer)
Solitary Sandpiper (Las Animas)
Red-necked Phalarope (*Boulder)
Parasitic Jaeger (*Boulder)
Sabine’s Gull (*Jefferson, Larimer)
Bonaparte’s Gull (Larimer)
WESTERN GULL (*Arapahoe)
Lesser Black-backed Gull (*Boulder)
Great Black-backed Gull (Douglas)
Forster’s Tern (*Boulder, La Plata)
Common Loon (*Jefferson, *Larimer)
Double-crested Cormorant (Teller)
Great Egret (Larimer)
Snowy Egret (La Plata)
Cattle Egret (Boulder, Douglas)
White-faced Ibis (Garfield, Montrose)
Osprey (*Summit)
Broad-winged Hawk (Larimer)
Lewis’s Woodpecker (Boulder, La Plata)
Williamson’s Sapsucker (Montezuma, *Montrose, Summit)
Red-naped Sapsucker (Larimer, Mesa, *Summit)
Western Wood-Pewee (Jefferson)
American Kestrel (Adams)
Peregrine Falcon (*Jefferson)
Hammond’s Flycatcher (Mesa, Montezuma)
Gray Flycatcher (El Paso, *Mesa)
Dusky Flycatcher (Montrose)
Cordilleran Flycatcher (Eagle, Larimer, Mesa, Montezuma)
Black Phoebe (La Plata)
Eastern Phoebe (*Boulder, Huerfano, Jefferson)
Vermilion Flycatcher (Boulder)
TROPICAL KINGBIRD (*Jefferson)
Mystery Kingbird (*Larimer)
Cassin’s Kingbird (Adams, Denver, *Larimer)
Western Kingbird (Jefferson)
Eastern Kingbird (Larimer)
Northern Shrike (Larimer)
Gray Vireo (Mesa)
Cassin’s Vireo (Boulder, La Plata)
Steller’s Jay (Clear Creek, Eagle, *Summit, Teller)
Woodhouse’s Scrub-Jay (Huerfano, *Jefferson, La Plata, *Mesa, *Montrose)
Juniper Titmouse (La Plata, *Montrose)
Bushtit (Boulder, La Plata)
Brown Creeper (Mesa)
Rock Wren (Boulder, Huerfano, *Larimer, *Montrose)
Marsh Wren (Arapahoe, Larimer, *Mesa)
Bewick’s Wren (Huerfano, *Mesa, Montrose, Pueblo)
Blue-gray Gnatcatcher (*Mesa)
Golden-crowned Kinglet (San Juan, *San Miguel)
Ruby-crowned Kinglet (Adams, *Boulder, Clear Creek, Huerfano, *Jefferson,
La Plata, *Larimer, *Mesa, *Montrose, *San Miguel, *Summit)
Mountain Bluebird (Boulder, Denver, *Larimer, *Montrose, Park, Rio Grande)
Hermit Thrush (Adams, Boulder, *Larimer, *Mesa, *Summit)
Gray Catbird (Routt)
Sage Thrasher (Huerfano, *Larimer, Park, Rio Grande)
Northern Mockingbird (Park)
American Pipit (Huerfano, *Larimer, Montrose, Park, *Summit, Weld)
Green-tailed Towhee (Boulder, Clear Creek, Weld)
Chipping Sparrow (El Paso)
American Tree Sparrow (Adams)
Clay-colored Sparrow (Boulder, El Paso, Huerfano, *Jefferson, Larimer, Weld)
Brewer’s Sparrow (Boulder,*Jefferson, Mesa)
Savannah Sparrow (Huerfano, Larimer, Lincoln)
Vesper Sparrow (Archuleta, Boulder, Clear Creek, *Montrose, *San Miguel)
Lark Sparrow (Boulder, Eagle)
Fox Sparrow (San Juan)
Lincoln’s Sparrow (Boulder, Eagle, Huerfano, Kiowa, Larimer, Lincoln,
*Mesa, Montrose, Routt, *San Miguel, Weld)
Brewer’s Blackbird (*Summit)
Common Grackle (*Summit)
Orange-crowned Warbler (Larimer, *Summit)
Nashville Warbler (La Plata, Mesa)
Virginia’s Warbler (*Mesa)
MacGillivray’s Warbler (Mesa)
Common Yellowthroat (*Summit)
American Redstart (Boulder)
Magnolia Warbler (*Boulder)
Chestnut-sided Warbler (*Boulder, *Mesa)
Black-throated Blue Warbler (Clear Creek)
Palm Warbler (*Jefferson)
Black-throated Gray Warbler (El Paso, Montezuma)
Townsend’s Warbler (Boulder, *Mesa)
Wilson’s Warbler (*Mesa, Park, Summit)
Western Tanager (*Boulder, La Plata)
Indigo Bunting (Kiowa)
Painted Bunting (Kiowa)

ADAMS COUNTY:
---On October 9 at Barr Lake Banding Station, Meredith McBurney banded
American Kestrel, 8 Ruby-crowned Kinglet, and 2 Hermit Thrush.
---On October 8 at Rocky Mountain Arsenal Southern Lake Ladora, Orien
Richmond reported 200 Sandhill Cranes (Flyover), Cassin’s Kingbird, 5
American Tree Sparrows, and Lincoln’s Sparrow.

ARAPAHOE COUNTY:
---On October 8 at Aurora Reservoir, Cole Sage reported WESTERN GULL. On
October 9 at Aurora Reservoir, Gregg Goodrich reported WESTERN GULL. On
October 10 at Aurora Reservoir, Bill Schreitz and Diane Roberts reported
2000 Sandhill Cranes (Flyover), and WESTERN GULL.

ARCHULETA COUNTY:
---On October 8 at Echo Canyon Lake SWA, Ben Bailey and Bryon Greco
reported 6 Vesper Sparrow.

BOULDER COUNTY:
---On October 8 at Walden Ponds, David Ely, Will Anderson, David
Leatherman, Nathan Pieplow, Katie Lehman and David Haskell reported 4
Pectoral Sandpipers and Vermilion Flycatcher. The Vermilion was seen fly
catching over the water. On October 9 at Walden Ponds, Matthew Wistrand,
Bill Kaempfer, Phil Lyon, and Eva Matthews Lark reported 310 Sandhill Crane
(Flyover), 4 Pectoral Sandpiper, Ruby-crowned Kinglet, 2 Clay-colored
Sparrow, and 4 Lincoln’s Sparrow.
---On October 8 at Lagerman Reservoir, David Ely, Frank Farrell, Dean
Shoup, David Dowell, Bob Fiehweg, Dave Leatherman, Tyler Wilson, and Eva
Matthews Lark reported Parasitic Jaeger, Lesser Black-backed Gull, and 3
Cattle Egret. On October 9 at Lagerman Reservoir, Raymond Sperger and
others reported Parasitic Jaeger and 2 Lesser Black-backed Gull. On
October 10 at Lagerman Reservoir, Boulder Bird Club, Logan Parr, and Luke
Phenger reported 2 Red-necked Phlarope, Parasitic Jaeger, 2 Lesser
Black-backed Gulls, and Forster’s Tern.
--- On October 9 at Rabbit Mountain, Raymond Sperger reported 3
Clay-colored Sparrow and 2 Brewer’s Sparrow.
---On October 9 at Mesa Reservoir, Christian Nunes reported 803 Sandhill
Cranes (flyover), 2 Rock Wren, 4 Ruby-crowned Kinglet, Hermit Thrush,
Vesper Sparrow, and Lincoln’s Sparrow.
---On October 9 on Mayhoffer Singletree Trail in Superior, Peter Ruprecht
reported 2 Cassin’s Vireo, 58 Mouuntain Bluebird, 2 Clay-colored Sparrow,
Lark Sparrow, Green-tailed Towhee, and Rock Wren.
---On October 9 on Coyote Run OS in Louisville, Ryan Bushong reported 65
Sandhill Cranes (flyover), Lewis’s Woodpecker and Hermit Thrush.
---On October 9 at Ryssby Church and Cemetery on N 63rd, David Dowell
reported 3 Ruby-crowned Kinglet, American Redstart, Chestnut-sided Warbler,
and Townsend’s Warbler. On October 10 at Ryssby Church and Cemetery, David
Dowell reported Chestnut-sided Warbler.
---On October 10 at Golden Ponds Park and NA, David Dowell reported Eastern
Phoebe and Magnolia Warbler.
---On October 10 at Centennial Trail – Dimmit Dr to Old Tale Rd, Bill
Kaempfer reported Ruby-crowned Kinglet, and Western Tanager.
---On October 10 at Prince Lake # 2, Ted Floyd reported 3 Pectoral
Sandpipers.

CLEAR CREEK COUNTY:
---On October 8 at 2821 Riverside Drive, Idaho Springs, Matthew Wistrand
reported 2 Steller’s Jay, Ruby-crowned Kinglet, Vesper Sparrow,
Green-tailed Towhee, and f Black-throated Blue Warbler.

DOUGLAS COUNTY:
---On October 9 at Bayou Gulch, Mark Edwards reported Cattle Egret.

EAGLE COUNTY:
--- On October 9 at Sylvan Lake SP, Park Staff reported 7 Cordilleran
Flycatcher, Steller’s Jay, and Lincoln’s Sparrow.

GARFIELD COUNTY:
---On October 9 at Ponds near Rifle Garfield Airport, Dale and Karen Lumley
reported White-faced Ibis.

HUERFANO COUNTY:
---On October 8 at Lathrop SP, David Tonnessen reported Mexican Duck,
Virginia Rail, Woodhouse’s Scrub-Jay, Bewick’s Wren, Ruby-crowned Kinglet,
American Pipit, 2 Clay-colored Sparrow, and 2 Lincoln’s Sparrows.
---On October 8 at Lake Maria, David Tonnessen reported 8 Bufflehead (1m,
7f), and Savannah Sparrow.
---On October 8 on Industrial Park Drive near Walsenburg, David Tonnessen
reported Eastern Phoebe, Rock Wren, and Sage Thrasher.

JEFFERSON COUNTY:
---On October 8 at W entrance road of S Platte Reservoir and nearby
buildings, Mark Miller, Tina Jones, John Rutenbeck, Robert Folzenlogen,
Jessi Oberbeck, and Kathy Mihm Dunning reported TROPICAL KINGBIRD. On
October 9 at W Entrance road of S Platte Reservoir, Tony Leukering, Bill
Kaempfer, John Vanderpoel, and Elaine Wagner reported TROPICAL KINGBIRD.
On October at W Entrance Road of S Platte Reservoir, David Suddjian and
Matt Crooks sreported TROPICAL KINGBIRD; Doug Kibbe and Mackenzie
Goldthwait reported Peregrine Falcon.
---On October 9 at Chatfield SP N Boat Ramp, Mark Chavez reported 2
Sabine’s Gull and Common Loon. On October 10 at Chatfield SP N Boat Ramp,
Matthew Wistrand reported 2 Sabine’s Gull, Common Loon, 2 Ruby-crowned
Kinglet, 2 Clay-colored Sparrow, and Brewer’s Sparrow.
---On October 10 east of where Tucker Gulch Trail meets Clear Creek Canyon
Trail, Golden, Lindsay Purifoy and Timo Mitzen reported 360 Sandhill Cranes
(Flyover), Woodhouse’s Scrub-Jay, Clay-colored Sparrow, and 2 Palm Warbler.

LA PLATA COUNTY:
---On October 8 at Pastorius Reservoir, Susan Allerton reported Pectoral
Sandpiper, Cassin’s Vireo, Woodhouse’s Scrub-Jay, 3 Ruby-crowned Kinglet,
and Western Tanager. On October 9 at Pastorius Reservoir, Susan Allerton
and David Dunford reported Forster’s Tern, Bushtit, Juniper Titmouse,
Woodhouse’s Scrub-Jay, 2 Ruby-crowned Kinglet, and Western Tanager.

LARIMER COUNTY:
---On October 7 at Wellington SWA, Andy Bankert and Nick Komar reported two
mystery kingbirds. One appears to be Cassin’s Kingbird and the other
perhaps Couch’s. On October 8 at Wellington SWA—Cobb Lake Unit, Andy
Bankert, Nick Komar, and David Wade reported Common Loon, Cassin’s Kingbird
and continuing mystery Kingbird (latest thought is that it is a possible
hybrid), Marsh Wren, Rock Wren, 2 Ruby-crowned Kinglet, 15 American Pipit,
2 Lincoln’s Sparrow, 7 Orange-crowned Warbler. On October 10 at Wellington
SWA, Andy Bankert reported Northern Bobwhite, 300 Sandhill Cranes, Common
Loon, 2 Cassin’s Kingbird, mystery Yellow-bellied Kingbird, Rock Wren, 3
Ruby-crowned Kinglet, 5 Mountain Bluebird, 3 Hermit Thrush, 2 Sage
Thrasher, and 2 American Pipit.
---On October 8 at Rocky Mountain National Park, John Faber reported
Northern Shrike.
---On October 8 at Horseshoe Reservoir, Nick Komar reported American
Avocet, 2 Bonaparte’s Gull, Lesser Black-backed Gull, and 2 Great Egret.
---On October 8 at Timnath Reservoir, Nick Komar reported Sanderling.
---On October 9 at North Shields Pond NA, Doug Swartz reported Red-naped
Sapsucker, 2 Ruby-crowned Kinglet, Hermit Thrush, and 3 Lincoln’s Sparrow.
---On October 10 at Greyrock Commons, Doug Swartz reported Sandhill Crane,
Ruby-crowned Kinglet, Clay-colored Sparrow.
---On October 10 at Arapahoe Bend NA RIgden Reservoir (Strauss Cabin Lake),
Jay Breidt reported 11 Bufflehead, Virginia Rail, and Spotted Sandpiper.

MESA COUNTY:
---On October 8 at Colorado River SP—Fruita Section, Adam Cupito and Carol
Ortenzio reported Red-naped Sapsucker, Hammond’s Flycatcher (banded), 2
Woodhouse’s Scrub-Jay, Brown Creeper, MacGillivray’s Warbler (banded),
Chestnut-sided Warbler (banded).
---On October 9 at Connected Lakes SP, Adam Cupito reported Woodhouse’s
Scrub-Jay, 2 Ruby-crowned Kinglet, Nashville Warbler (recapture),
Chestnut-sided Warbler (recapture), and 2 Townsend’s Warbler (banded). On
October 10 at Connected Lakes SP, Adam Cupito reported Woodhouse’s
Scrub-Jay, Bewick’s Wren, 9 Ruby-crowned Kinglet, Hermit Thrush, Virginia’s
Warbler (recapture), Chestnut-sided Warbler (recapture), 3 Wilson’s Warbler
(banded).
---On October 9 at Horsethief Canyon SWA, Drew Kelly reported Cordilleran
Flycatcher, 3 Woodhouse’s Scrub-Jay, Marsh Wren, Bewick’s Wren, 2
Ruby-crowned Kinglet, Hermit Thrush, and Brewer’s Sparrow.
---On October 9 at Grand Junction WA, Mike Henwood reported Gray
Flycatcher, 4 Marsh Wren, Blue-gray Gnatcatcher, Hermit Thrush, 3 Lincoln’s
Sparrow. On October 10 at Grand Junction WA, Cory Atwood, Katey Buster,
and Adam Cupito reported Gray Flycatcher, Blue-gray Gnatcatcher, 2 Marsh
Wren, 3 Lincoln’s Sparrows, and Townsend’s Warbler.

MONTEZUMA COUNTY:
---On October 9 at (37.4590, -108.5262) in Dolores, Carol Bylsma reported
juv Williamson’s Sapsucker and Hammond’s Flycatcher.

MONTROSE COUNTY:
---On October 8 at Nucla Domestic Reservoir, Coen Dexter and Brenda Wright
reported Dusky Flycatcher, Bewick’s Wren, 5 Ruby-crowned Kinglet, 5
Mountain Bluebird, and Vesper Sparrow. On October 10 at Nucla Domestic
Reservoir, Coen Dexter and Brenda Wright reported Williamson’s Sapsucker, 2
Woodhouse’s Scrub-Jay, Juniper Titmouse, Rock Wren, 8 Ruby-crowned Kinglet,
6 Mountain Bluebird, and Vesper Sparrow.
---On October 8 at Otter Ponds, Betty Fenton reported Horned Grebe.
---On October 9 at Cooper’s Ditch, Coen Dexter and Brenda Wright reported
White-faced Ibis, 4 Ruby-crowned Kinglet, 47 Mountain Bluebird, American
Pipit, and 3 Lincoln’s Sparrow.

RIO GRANDE COUNTY:
---On October 8 at Monte Vista NAWR, Glenn Gade reported Sage Thrasher and
Mountain Bluebird.

SAN MIGUEL COUNTY:
---On October 10 Boomerang to River Trails, Eric Hynes reported
Golden-crowned Kinglet, 2 Ruby-crowned Kinglet, Vesper Sparrow, and Lincoln
‘s Sparrow.

SUMMIT COUNTY:
---On October 9 at Dillon Reservoir Giberson Bay, M Walt reported 6
American Pipit, Orange-crowned Warbler, and 2 Wilson’s Warbler. On October
10 at Dillon Reservoir Giberson Bay, M Walt reported 3 Orange-crowned
Warbler.
---On October 10 at Dillon Reservoir, Frisco Marina, John Faber reported
Osprey, Red-naped Sapsucker, 2 American Pipit, 4 Brewer’s Blackbird, and
Common Grackle.
---On October 10 at Arapaho NF Breckenridge (39.5118, -106.0502) John Faber
reported Ruby-crowned Kinglet, Orange-crowned Warbler, and Common
Yellowthroat.
---On October 10 at Arapaho NF Breckenridge (39.4730, -106.0323) John Faber
reported Steller’s Jay and Hermit Thrush.

TELLER COUNTY:
---On October 8 at Crystola ponds, Jan Allbright and Richard Bunn reported
Double-crested Cormorant and Steller’s Jay.

WELD COUNTY:
---On October 8 at Idaho Creek, Steve Mlodinow reported 4 American Pipit,
Clay-colored Sparrow, 4 Lincoln’s Sparrow, and Green-tailed Towhee.

DFO Field Trips
For more details go to the DFO website.

Reuter-Hess Reservoir
Wednesday, October 10
7:00 AM – 12:00 PM
Tim Ryan and Diane Roberts (Tryan4thebirds AT yahoo.com; 720-545-5084)

Writer’s Vista Park to McClellan Reservoir
Thrusday, October 11
8:00 AM – 12:00 PM
Doris Cruze (cruzeduo AT aol.com; 303-798-8072)

Chatfield State Recreation Center
Saturday, October 13
6:30 AM – 12:00 PM
Jared Del Rosso (jared.delrosso AT gmail.com; 617-275-6252)

Chatfield State Park, The Big Sit
Sunday, October 14
6:30 AM – 6:30 PM
Joey Kellner (vireo1 AT comcast.net; 303-978-1748)

Cherry Creek SP Wetlands Loop
Sunday, October 14
8:00 AM – 12:00 PM
Karen von Saltza (kvonsaltza AT yahoo.com; 303-941-4881)

Good Birding,
Joyce Takamine
Boulder

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