Date: 9/14/18 2:54 am
From: Joyce Takamine <jabirujt...>
Subject: [cobirds] Colorado Rare Bird Alert, 14 September 2018
Date: September 14, 2018
Compiler: Joyce Takamine
e-mail: RBA AT cobirds.org

This is the Rare Bird Alert for Friday, September 14 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)

Snow Goose (Prowers)
Cackling Goose (Larimer, Prowers)
Trumpeter Swan (Archuleta)
Tundra Swan (Prowers)
Barrow’s Goldeneye (Routt)
Hooded Merganser (*Arapahoe)
White-winged Dove (Mesa)
Black Swift (Rio Grande)
Black-necked Stilt (Mesa)
American Avocet (*Adams, Jackson, *Washington)
Black-belllied Plover (Morgan, *Washington)
Semipalmated Plover (Jackson, Larimer, Washington)
Whimbrel (Washington)
Marbled Godwit (*Adams, Larimer, Washington, Weld)
Stilt Sandpiper (Jackson, Larimer, Weld)
Sanderling (*Adams)
Pectoral Sandpiper (*Adams, Arapahoe, Jackson, Washington,)
Semipalmated Sandpiper (Jackson)
Western Sandpiper (Jackson)
Solitary Sandpiper (*Adams, Jackson, Larimer, Las Animas, Pueblo)
Willet (*Washington)
Red-necked Phalarope (*Adams, *Washington)
Parasitic Jaeger (*Douglas, *Jefferson)
Long-tailed Jaeger (*Douglas, *Jefferson, *Pueblo)
Sabine’s Gull (Arapahoe, *Denver, Douglas, *Jefferson)
LITTLE GULL (*Washington)
Mew Gull (Arapahoe, *Routt)
Lesser Black-backed Gull (*Adams, Douglas, *Larimer, *Pueblo, Weld)
Great Black-backed Gull (Douglas, Jefferson)
Caspian Tern (*Douglas, *Jefferson, *Larimer, *Washington)
Black Tern (Kiowa, *Washington)
Common Tern (Douglas, *Washsington)
Forster’s Tern (Jackson, *Montezuma)
Common Loon (*Adams, *Eagle)
Little Blue Heron (Weld)
Cattle Egret (*Mesa)
Green Heron (*Denver, Larimer)
White-faced Ibis (*Mesa, Routt, *Washington)
Rough-legged Hawk (Adams)
Lewis’s Woodpecker (La Plata)
Red-headed Woodpecker (El Paso)
Red-naped Sapsucker (*Boulder, El Paso)
Ladder-backed Woodpecker (El Paso, Pueblo)
Olive-sided Flycatcher (Larimer, Montezuma)
Willow Flycatcher (El Paso, *Ouray)
Hammond’s Flycatcher (*Adams, *El Paso, Mesa)
Dusky Flycatcher (Adams, El Paso, Larimer)
Western Flycatcher (*El Paso)
Cordilleran Flycatcher (*Douglas, Montezuma)
Black Phoebe (Jefferson, Mesa)
Eastern Phoebe (Denver, Jefferson)
Great Crested Flycatcher (El Paso)
Eastern Kingbird (Larimer, Summit)
White-eyed Vireo (Douglas)
Gray Vireo (Mesa)
Cassin’s Vireo (*Adams, El Paso, La Plata, Mesa)
Pinyon Jay (*Ouray)
Steller’s Jay (*Ouray)
Woodhouse’s Scrub-Jay (*Douglas, *Jefferson, La Plata, Larimer, Montezuma,
*Ouray)
Chihuahuan Raven (El Paso, Pueblo)
Violet-green Swallow (Weld)
Bushtit (*Douglas)
Marsh Wren (Arapahoe, Larimer)
Bewick’s Wren (Las Animas, Mesa, *Montezuma)
Blue-gray Gnatcatcher (Adams, Denver, Douglas, El Paso, La Plata, Phillips,
*San Juan)
Golden-crowned Kinglet (El Paso, *San Miguel)
Ruby-crowned Kinglet (*Adams, *El Paso, Larimer, *Montezuma)
Swainson’s Thrush (El Paso)
Hermit Thrush (El Paso)
Curve-billed Thrasher (El Paso)
Brown Thrasher (El Paso)
Sage Thrasher (El Paso, Jackson, *Larimer, Pueblo)
American Pipit (Larimer, Pueblo)
Chipping Sparrow (Adams, El Paso)
Clay-colored Sparrow (Adams, *Denver, *El Paso, Larimer, Mesa)
Brewer’s Sparrow (Adams, *Denver, El Paso, Jackson, *Larimer, Mesa,
Montezuma)
Lark Bunting (Adams, Jackson, Routt)
Savannah Sparrow (Jackson, Jefferson, Larimer, Pueblo, Washington)
Lincoln’s Sparrow (*Adams, *Denver, *El Paso)
Yellow-breasted Chat (Ouray)
Orchard Oriole (Adams)
Northern Waterthrush (El Paso, La Plata)
Black-and-white Warbler (Boulder)
Hooded Warbler (Jefferson)
American Redstart (La Plata)
Blackpoll Warbler (Phillips)
Palm Warbler (Jefferson, *San Miguel)
Pine Warbler (Jefferson)
Black-throated Gray Warbler (El Paso)
Townsend’s Warbler (El Paso, Larimer)
Summer Tanager (Routt)
Indigo Bunting (Kiowa, Yuma)

ADAMS COUNTY:
---On September 11 at Barr Lake Banding Station, Meredith McBurney banded 2
Dusky Flycatchers, Chipping Sparrows, Clay-colored Sparrow, and Brewer’s
Sparrow. On September 13 at Barr Lake Banding Station, Meredith McBurney
banded Hammond’s Flycatcher, Cassin’s Vireo, and Ruby-crowned Kinglet.
---On September 10 at Rocky Mountain Arsenal NWR, Candice Johnson reported
2 Red-necked Phalarope, Solitary Sandpiper, Rough-legged Hawk, 6
Clay-colored Sparrow, and 3 Lark Bunting.
---On September 9 at Rocky Mountain Arsenal NWR First Creek, John Breitsch
reported Orchard Oriole and Blue-gray Gnatcatcher.
---On September 13 at Barr Lake SP, David Dowell reported 19 American
Avocet, Marbled Godwit, 2 Sanderling, 5 Pectoral Sandpipers, Semipalmated
Sandpiper, 28 Red-necked Phalarope, Lesser Black-backed Gull, Common Loon,
2 Ruby-crowned Kinglet, and Lincoln Sparrow.

ARAPAHOE COUNTY:
---On September 10 at Cherry Creek SP, Chris Brown reported Mew Gull and
Pectoral Sandpiper; Christine Alexander reported Mew Gull and 3 Sabine’s
Gulls.
---On September 13 at South Platte Park Eagle Watch Lake, Cynthia Madsen
reported Hooded Merganser.

ARCHULETA COUNTY:
---On September 11 at Pinon Lake Reservoir, Ben Bailey reported Trumpeter
Swan.

BOULDER COUNTY:
---On September 12 in Louisville (town), Jack Bushong reported
Black-and-white Warbler along Coal Creek several hundred yards W of
Community Park and SW of downtown.
---On September 12 at Pleasant View Marsh, Ernest Crvich reported f
Red-naped Sapsucker

DENVER COUNTY:
---On September 9 at Bluff Lake Nature Center, Betty Glass reported Green
Heron. On September 13 at Bluff Lake Nature Center, Rececca Laroche and
DFO field trip reported Green Heron, Sabine’s Gull, Clay-colored Sparrow, 5
Brewer’s Sparrow, 2 Lincoln’s Sparrow.
---On September 9 at Westerly Creek Park, Jason Bidgood reported Eastern
Phoebe, Blue-gray Gnatcatcher, Clay-colored Sparrow.

DOUGLAS COUNTY:
---On September 9 at Castlewood Canyon Road, Lynne Forrester reported
White-eyed Vireo, 12 Woodhouse’s Scrub-Jay, 33 Bushtit, and 9 Blue-gray
Gnatcatcher.
---On September 9 at Chatfield SP, Myron Gerhard found 3 jaegers. On
September 10 at Chatfield SP Marina Sandspit and below dam, Mark Chavez,
Frank Farrell, Gwen Moore, Gregg Goodrich, Hillary White, Scotter
Somershoe, Lock Kilpatrick and Glenn Walbek reported 2 Long-tailed Jaegers
and Parasitic Jaeger. On September 11, Doug Faulkner and many other
birders reported 2 Long-tailed Jaegers, Parasitic Jaeger, 2 Sabine’s Gulls,
2 Common Tern, and 3 Savannah Sparrows. On September 12 at Chatfield SP,
Marina Sandspit, Tony Leukering reported Parasitic Jaeger and 2 Long-tailed
Jaegers. On September 13 at Marina Sandspit, Diane Roberts, and Nick Moore
reported Parasitic Jaeger and 2 Caspian Tern. On September 13 at Chatfield
SP Hannicapped Fisherman Access, David Suddjian and DFO field trip reported
Parasitic Jaeger, and 2 Long-tailed Jaeger.
---On September 13 at Roxborough SP, Bea Weaver reported Cordilleran
Flycatcher, 11 Woodhouse’s Scrub-Jay. And Bushtit.

EAGLE COUNTY:
---On September 13 at Piney Lake, Deanna MacPhail reported Common Loon.

EL PASO COUNTY:
---On September 10 at Clear Spring Ranch, Steve Brown banded juv Northern
Waterthrush, 20 Chipping Sparrows, 4 Clay-colored Sparrows, and Brewer’s
Sparrow. On September 11 at Clear Spring Ranch, Steve Brown banded another
Northern Waterthrush, 28 Chipping Sparrows and Clay-colored Sparrow.
---On September 10 at Chico Basin Ranch, John Drummond reported 2
Ladder-baked Woodpecker, Olive-sided Flycatcher, Dusky Flycatcher, Western
(Pacific-slope/Cordilleran) Flycatcher, Great Crested Flycatcher, Cassin’s
Vireo, Blue-gray Gnatcatcher, Brown Thrasher, Swainson’s Thrush
(Olive-backed), 18 Clay-colored Sparrows, and 5 Brewer’s Sparrows. On
September 12 at Chico Basin Ranch, Terence Berger, Kevin Ash, John Drummond
and Jeannie Mitchell and others, reported Red-naped Sapsucker, 2 Red-headed
Woodpecker, 3 Ladder-backed Woodpecker, Willow Flycatcher, Great Crested
Flycatcher, Cassin’s Vireo, Chihuahuan Raven, 2 Blue-gray Gnatcatcher,
Ruby-crowned Kinglet, Curve-billed Thrasher, 3 Brown Thrashers, 2 Sage
Thrasher, 5 Clay-colored Sparrow, 12 Brewer’s Sparrow.
---On September 11 at Chico Basin Ranch Banding Station, Kim Geissler
banded Northern Waterthrush, 3 Brown Thrashers, and Hermit Thrush. On
September 12 at Chico Basin Ranch Banding Station, Kim Geissler reported 3
Ruby-crowned Kinglet, Golden-crowned Kinglet, and 2 Brown Thrasher. On
September 13 at Chico Basin Ranch Banding Station, Kim Geissler banded 2
Ruby-crowned Kinglet, 2 Western Flycatcher, Hammond’s Flycatcher,
Clay-colored Sparrow, and 6 Lincoln’s Sparrows.

JACKSON COUNTY:
---On September 11 at Arapaho NWR Auto Loop, Chuck Hundermart reported 7
American Avocet, 3 Semipalmated Plover, 12 Stilt Sandpipers, Pectoral
Sandpiper, 2 Semipalmated Sandpiper, Western Sandpiper, Solitary Sandpiper,
Sage Thrasher, and Lark Bunting.
---On September 12 at Walden Reservoir, Chuck Hundertmark reported
Forster’s Tern, Sage Thrasher, 14 Savannah Sparrow, and 5 Brewer’s Sparrow.

JEFFERSON COUNTY:
---On September 10 at Welchester Tree Grant Park, Ginny Bergstrom reported
Hooded Warbler.
---On September 10 at Deer Creek at W Buckhorn Road, David Suddjian
reported Eastern Phoebe.
---On September 10 at South Valley Park, David Suddjian reported Palm
Warbler in wild plum thicket along South Valley Road about .5 mile south of
Mann Reservoir. On September 12 at South Valley Road, Gwen Moore reported
Palm Warbler and 2 Woodhouse’s Scrub-Jay.
---On September 11 at Wheat Ridge Greenbelt at Youngfield Entrance, Tuesday
Birders reported Black Phoebe and Savannah Sparrow.
---On September 11 at Chatfield SP North Boat Ramp, Bill Kaempfer and Dean
Shoup reported Great Black-backed Gull, Parasitic Jaeger, and 2 Long-tailed
Jaeger. On September 12 at Chatfield SP North Boat Ramp, Brian Johnson,
Norm Lewis, and Santiago Tabares reported Parasitic Jaeger, 2 Long-tailed
Jaeger, and Sabine’s Gull. On September 13 at Chatfield SP North Boat
Ramp, Lisa Edwards, Michael Lester, Timo Mizen, Diane Roberts, Gabriel
Wiltse and Christine Alexander reported Parasitic Jaeger, 2 Long-tailed
Jaeger, Sabine’s Gull, and 2 Caspian Tern. On Septebmer 13 at Chatfield SP
North Boat Ramp, David Suddjian and DFO Field Trip reported Parasitic
Jaeger, 2 Long-tailed Jaeger and Sabine’s Gull.

LA PLATA COUNTY:
---On September 10 at Oxbow Park and Preserve, Susan Allerton reported
Cassin’s Vireo, 2 Woodhouse’s Scrub-Jay, Blue-gray Gnatcatcher, and
American Redstart.

LARIMER COUNTY:
---On September 11 at Timnath Reservoir, Gregg Goodrich and DFO Field Trip
reported Cackling Goose, Semipalmated Plover, Stilt Sandpiper, 5 Sanderling
(2 ad, 3 juv), Solitary Sandpiper, 2 Caspian Tern, Marsh Wren, 2 American
Pipit, Savannah Sparrow; Steve Mlodinow also reported Lesser Black-backed
Gull. On September 13 at Timnath Reservoir, Joe Mammoser reported Caspian
Tern.
---On September 10 at Grandview Cemetery, Dave Leatherman reported
Ruby-crowned Kinglet, Olive-sided Flycatcher. On September 11 at Grandview
Cemetery, Dave Leatherman reported Woodhouse’s Scrub-Jay and Clay-colored
Sparrow.
---On September 11 at Prospect Ponds NA S of Sharp Point Drive first pond S
of feed lot pond, Dave Leatherman reported Green Heron.
---On September 11 at Richard’s Lake, Joshua Smith reported Dusky
Flycatcher and Blue-gray Gnatcatcher.
---On September 13 at Tri Lakes Region, Joshua Smith reported Sage Thrasher
and 2 Brewer’s Sparrows.

MESA COUNTY:
---On September 10 at Grand Junction Wildlife Area, Mike Henwood reported 2
Hammond’s Flycatcher, White-winged Dove, Clay-colored Sparrow, Black
Phoebe, 2 Bewick’s Wren, and 40 Brewer’s Sparrows. On September 11 at
Grand Junction Wildlife Area, Denise and Mark Vollmar reported Clay-colored
Sparrow, Cassin’s Vireo, and Brewer’s Sparrow.
---On September 11 at James M Robb Colorado River SP Pear Park section,
Connee Moffatt reported 2 Black-necked Stilt.
---On September 13 at Cheney Reservoir, Nic Korte reported Cattle Egret and
4 White-faced Ibis.

MONTEZUMA COUNTY:
---On September 10 at Simon Draw SWA, Wendy Wibbens reported Olive-sided
Flycatcher, 2 Blue-gray Gnatcatcher, and 15 Brewer’s Sparrows.
---On September 13 at Totten Reservoir, Erik Hendrickson reported
Forester’s Tern, Bewick’s Wren, and Ruby-crowned Kinglet.

OURAY COUNTY:
---On September 11 at Ridgway SP Dallas Creek, Adam Cupito banded
Yellow-breasted Chat and Willow Flycatcher; Betty Fenton observed Willow
Flycatcher. On September 13 at Ridgway SP Dallas Creek, Adam Cupito
reported 50 Pinyon Jay, Steller’s Jay, and Woodhouse’s Scrub-Jay and banded
Willow Flycatcher.

PUEBLO COUNTY:
---On September 12 at Chico Basin Ranch, Terence Berger reported 2 Solitary
Sandpiper, Ladder-backed Woodpecker, 2 Chihuahuan Raven, Sage Thrasher,
American Pipit, Savannah Sparrow.
---On September 13 at Pueblo Reservoir, Brandon Percival reported juv
Long-tailed Jaeger and 2 ad Lesser Black-backed Gull on South Shore Marina
Tires.s

PROWERS COUNTY:
---On September 10 at Hwy 50/Hwy 287 W of Lamar, Jane Stulp and Janeal
Thompson reported 3 Snow Geese, 4 Cackling Geese, and Tundra Swan.

RIO GRANDE COUNTY:
---On September 11 at Home Lake, John Rawinski reported 20 Black Swifts.

ROUTT COUNTY:
---On September 11 at Yampa River Botanic Park, David Suddjian and DFO
Field Trip reported Summer Tanager. Summer Tanager is a possible new
county bird for Routt County.
---On September 11 at Yampa River near CR 70, David Suddjian and DFO Field
trip reported Lark Bunting.
---On September 11 at Stagecoach Reservoir, David Suddjian and DFO Field
trip reported Barrow’s Goldeneye and Mew Gull.

SAN JUAN COUNTY:
---On September 13 at 250-252 CR 6, Jason St Pierre reported Blue-gray
Gnatcatcher.

SAN MIGUEL COUNTY:
---On September 13 Boomerang to River Trails near Telluride, Eric Hynes
reported 2 Golden-crowned Kinglet and Palm Warbler (Western). The Palm
Warbler if approved would be a new country bird.

SUMMIT COUNTY:
---On September 10 at Arapaho National Forest near Breckenridge, R Knapp
reported Eastern Kingbird.

WASHINGTON COUNTY:
---On September 12 at Prewitt Reservoir, Cynthia Madsen and David Hill
reported 8 Semipalmated Plover, Whimbrel, Marbled Godwit, Pectoral
Sandpiper, 21 Red-necked Phalarope, 23 Black Tern, 4 Common Tern, and
Savannah Sparrow. On September 13 at Prewitt Reservoir, Bill Kaempfer
reported 2 American Avocet, Black-bellied Plover, 2 Red-necked Phalarope,
Willet, LITTLE GULL, 33 Black Tern, 5 Common Tern, and 3 White-faced Ibis.

WELD COUNTY:
---On September 10 at Windsor Lake, Steve Mlodinow reported Lesser
Black-backed Gull.

DFO Field Trips
Boulder County:
Friday, September 14
6:30 AM – 4:00 PM
Karen Drozda (drozforte AT AOL.com; 303-399-0891)
This trip has been cancelled

Prewitt and Jackson Reservoirs
Saturday, September 15
5:30 AM – 6:00 PM
Mark Amershek (mamershek AT msn.com; 303-329-8646)

Littleton
Saturday, September 15
7:00 AM – 12:00 PM
David Suddjian (dsuddjian AT gmail.com; 831-713-8659)

Boulder Reservoirs (Baseline, Valmont, and Boulder)
Sunday, September 16
6:30 AM – 4:00 PM
Karen Drozda (drozforte At AOL.com; 303-388-0891)

Good Birding,
Joyce Takamine
Boulder

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