Date: 10/3/18 3:44 am
From: Amy Davenport <cobussec...> [cobirders] <cobirders-noreply...>
Subject: [cobirders] Colorado Rare Bird Alert for October 3, 2018
Hello cobirders

Our report is called Rare Bird Alert because search engines find it
better. The report is really "Uncommon Bird Report" Not all uncommon
birds are rare birds. Birders may want to know where to see them anyway!
Without being a member, "cobirders" can be read at:

Report Uncommon Birds at: 303-324-7994 or

NOTE: Reports do not confirm sightings. Choose to chase at your own risk
and expense.!
NOTE: To reduce length of report, only recent sightings listed; visit
Colorado Birding Society's website everyday for additional sightings!

Reports added: 10/2/2018
Archuleta (Lewis's Woodpecker)
Boulder (Vermilion Flycatcher, Pectoral Sandpiper)
El Paso (Cassin's Vireo)
El Paso/Pueblo (Curve-billed Thrasher, American Redstart)
Jefferson (Cassin's Vireo, Tennessee Warbler)
Larimer (Turkey Vulture, Cassin's Vireo)
Mesa (Black Phoebe, Sagebrush Sparrow, Nashville Warbler)
Park (Jaeger, Red-necked Grebe, Sage Thrasher, Chestnut-collared Longspur)
Prowers (Tundra Swan)
Summit (Yellow-billed Loon, Common Loon)
Weld (Common Tern)


Adams/Denver Counties
++++First Creek Trail
Red-headed Woodpecker (juvenile) --Denver Cty (Jeff Dawson/John Breitsch)
(first 9/28) last 9/30

Arapahoe County
++++Cherry Creek Reservoir
Common Tern (Christine Alexander) first 9/30
++++Delaney Community Farm & Museum
Cassin's Vireo --Toll Gate Creek (Stevens:Kosten) first 9/30

Boulder County
++++Walden Ponds
Vermilion Flycatcher (male) --50 feet east of Cottonwood marsh parking
lot (Peter Burke/Dave King & all) (first 9/29) last 10/2
Pectoral Sandpiper (Pheneger:Zmolek/Dave King) (first 9/24) last 10/2
Northern Waterthrush --Wally Toevs Pond (Lindsay Purifoy) reported 10/1

++++Pleasant View Marsh
Blackpoll Warbler (Stevens) first 10/1
Townsend's Warbler (Christian Nunes/Stevens) (first 9/23) 2; last 10/1
Prothonotary Warbler (Ernest Crvich/Luke & Tracy Pheneger) (first 9/22)
last 9/29
++++West 120th Avenue
Long-eared Owl (4) (Micah Yarbrough) first 10/1
Sage Thrasher (2) (Micah Yarbrough) first 10/1

Douglas County
++++Cherry Creek Trail & Walker Pit
Eastern Phoebe --south/Walker Pit (Kingery) (first 4/13) last 9/30

El Paso County
++++Garden of the Gods
Cassin's Vireo (Tyler Stewart/Bob Craven) (first 9/30) last 10/2
++++Hanover Road and area
Burrowing Owl (4) (Debbie Segal/Richard Bunn:Jan Allbright) (first 7/23)
6; last 10/1
Short-eared Owl (Alexander:Gilbert) first 9/29
Curve-billed Thrasher (2) --Fire Station (Kiki Widjaja) first 9/29
Northern Mockingbird --Fire Station (Widjaja) first 9/29
Sage Thrasher (Joe Chen) first 9/29
++++Red Rock Canyon Open Space
Northern Mockingbird (Fred Losi) first 9/30
Cassin's Vireo (Gloria Nikolai) first 9/29
++++Pikes Peak
White-tailed Ptarmigan (4) --see map (Chris Goulart) first 9/30

El Paso/Pueblo Counties County
++++Chico Basin Ranch (fee area)
Curve-billed Thrasher (Kim Geissler) last 10/2
American Redstart (Geissler) first 10/2
Ladder-backed Woodpecker (Mel Goff & all) last 10/1
Sage Thrasher (Goff & all) last 10/1
Northern Mockingbird (Goff & all) last 10/1
Chestnut-collared Longspur (Drummond/Ketcham) (first 9/26) 12; last 10/1
(above: banding station, El Paso Cty)

Jefferson County
++++Bear Creek Lake Park
Cassin's Vireo (Mark Chavez) first 10/2
++++Crown Hill Park
Tennessee Warbler (2) (Sydney Fitzpatrick) reported 10/2
++++Denver West Office Complex
Tennessee Warbler (Mark Chavez) first 9/30
++++Arvada Reservoir
Palm Warbler (Mark Chavez) first 9/30
++++Van Bibber Trail
Eastern Screech-Owl (Edmond Holroyd) last 9/30

Jefferson/Douglas County
++++Chatfield Reservoir
(NOTE: see directions on construction updates)
Gray Flycatcher --north boat ramp (Lester/Myron Gerhard) (first 9/30)
last 10/1
Eastern Phoebe --Deer Creek, north end of swim beach
(Farrell:Madsen/Chen:Suddjian) (first 9/19) last 10/1
Red Phalarope --off Eagle Cove (Michael Lester) first 9/30
Jaeger (Long-tailed OR Parasitic)--off Eagle Cove (Michael Lester) last
Blackpoll Warbler --south Deer Creeek, east of Bridge (Michael Lester)
first 9/30

Larimer County
++++Fort Collins (Oak & Grant)
Turkey Vulture (109) (Georgia Doyle) first 10/2
++++Rocky Mountain National Park
White-tailed Ptarmigan (9) --Lava Cliffs (Kent Forward) last 10/1
American Three-toed Woodpecker (2) --Hidden Valley Creek (Kent Forward)
last 10/1
Townsend's Warbler --Hidden Valley (Kent Forward) first 10/1
++++Bobcat Ridge Natural Area
White-throated Sparrow (Fawn Simonds) first 9/30
(3rd record for Bobcat Ridge Natural Area; previous: 1/21/2006 &
Eastern Bluebird (Simonds) last 9/30
++++Grandview Cemetery
Cassin's Vireo (Leatherman) first 10/2
White-throated Sparrow (1st winter) (Leatherman) (first 9/25) 2; last 9/30
Townsend's Warbler (David Wade/Leatherman) (first 9/16) last 9/30
++++Horseshoe Lake
Mexican Duck --pond north of lake (Nick Komar/Komar:Breidt) (first 9/22)
last 9/30
++++CSU Plant Environmental Research Center
Nashville Warbler (Robert Beauchamp) first 9/30

Las Animas County
++++County Road 46 & CR 44
Lewis's Woodpecker (Darth Aves) first 9/30

Pueblo County
++++Valco Ponds Wildlife Area
Green Heron (Tim Leppek) last 9/29

Weld County
++++Union Reservoir & area
Common Tern (Steve Mlodinow) (first 9/15) last 10/2
++++Crow Valley
Broad-winged Hawk (David Leatherman) first 10/1
Eastern Bluebird (2) (Leatherman) first 10/1
++++Banner Lakes Wildlife Area
Pectoral Sandpiper (4) (Mike Hensley) first 9/30
Broad-winged Hawk (Mlodinow:Walters) first 9/30
Painted Bunting (Mlodinow:Walters) first 9/30


Baca County
++++Two Buttes Reservoir & area
Broad-winged Hawk (3) (Peterson:Leukering) first 10/1
Yellow-bellied Sapsucker (Peterson:Leukering) reported 10/1
White-throated Sparrow (2) (Peterson:Leukering) first 10/1

Kiowa County
++++Neenoshe Reservoir
Short-billed Dowitcher (Steve Mlodinow:Sean Walters) first 9/30
Red-necked Phalarope (5) (Mlodinow:Walters) first 9/30
Lesser Black-backed Gull (Steve Mlodinow:Sean Walters) first 9/30
Red-eyed Vireo (Steve Mlodinow:Sean Walters) first 9/30
Sedge Wren (Mlodinow:Walters) reported 9/30
Field Sparrow (Mlodinow:Walters) first 9/30
++++Upper Queens Reservoir
Semipalmated Plover (Steve Mlodinow:Sean Walters) first 9/30
Cassin's Vireo (Steve Mlodinow:Sean Walters) first 9/30
Philadelphia Vireo (Mlodinow:Walters) reported 9/30
++++County Road 40 at Kiowa Creek
Barn Owl (Mlodinow:Walters) last 9/30
Broad-winged Hawk (Steve Mlodinow:Sean Walters) first 9/30
Least Flycatcher (Mlodinow:Walters) first 9/30

Prowers County
++++North Gateway Park
Tundra Swan --Arkansas River/Hwy 50 (Leukering) last 10/2
Field Sparrow (Leukering) first 10/1


Kit Carson County
++++Flagler Reservoir
Cassin's Vireo (Stevens) first 9/29
Palm Warbler (Stevens) first 9/29
Magnolia Warbler (Stevens) first 9/29
Swamp Sparrow (Stevens) first 9/29

Yuma County
++++Bonny Reservoir Area
Sprague's Pipit --Pipit Hill (Richard Stevens) first 9/28


Archuleta County
++++Pagosa Springs & area
Lewis's Woodpecker (1) --Vista Pond (Ben Bailey:Byron Greco) last 10/2

Clear Creek County
++++Mt. Evans Road
Barrow's Goldeneye (up to 11) --Echo Lake (Nathan Senner/Lynne Miller)
(first 5/2) 3; last 9/30
White-tailed Ptarmigan (11) --Mt. Evans Road/south/Summit Lake (Tom
Wilberding & all) last 9/28

Delta County
++++Sweitzer Lake State Park
Sage Thrasher (Betty Fenton) first 9/30
Sagebrush Sparrow (Betty Fenton) first 9/30

Fremont County
++++Florence River Park
Black Phoebe (Cathy Sheeter) last 9/30
++++Beaver Creek Wildlife Area
Williamson's Sapsucker (Felice Lyons) first 9/30
Gray Flycatcher (Felice Lyons) first 9/30

Garfield County
++++Rifle Arch Trail
Pinyon Jay (3) (Coen Dexter:Brenda Wright) first 9/29

Grand County
++++Grand Lake area
American Three-toed Woodpecker --green mountain trail (Paul Block/Daniel
Patrick) (first 8/14) last 9/30

La Plata County
++++County Road 124, north of Hesperus
Lewis's Woodpecker (2) (Steve Frohock) first 9/30
Pinyon Jay (4) (Steve Frohock) first 9/30

Mesa County
++++Redlands Parkway Ponds
Black Phoebe (David Price/Mike Henwood) (first 8/26) last 10/2
++++Highline Lake State Park
Sagebrush Sparrow (6) (David Price) first 10/2
++++Connected Lakes State Park Area
Nashville Warbler (Adam Cupito) first 10/2
++++Horsethief Canyon Wildlife Area
Sagebrush Sparrow (David Price) first 9/30

Montezuma County
++++Hawkins Preserve
Gray Flycatcher (Erik Hendrickson) (first 9/26) last 10/1

Montrose County
++++Nucla Town Reservoir
Williamson's Sapsucker (Coen Dexter:Brenda Wright) (first 9/16) last 10/1
Black Phoebe (Coen Dexter:Brenda Wright) last 10/1
++++Nucla (5th avenue)
Northern Mockingbird (Dexter:Wright) first 9/30

Ouray County
++++Owl Creek Pass Road
Sagebrush Sparrow (Betty Fenton) first 9/29

Park County
++++Antero Reservoir
Jaeger (Stevens) first 10/2
++++Spinney Mountain
Red-necked Grebe (Stevens) first 10/2
++++Eleven Mile State Park
Sage Thrasher (Stevens) first 10/2
Chestnut-collared Longspur (Stevens) last 10/2

Summit County
++++Dillon Reservoir
Yellow-billed Loon (adult) (Jack & Ryan Bushong/Phil Lyon) (first 9/30)
(photographed, 1st county record)
Common Loon (Tyler Stewart/Phil Lyon) (first 10/1) last 10/2
(all above: Blue River Inlet to Reservoir)

Teller County
++++Manitou Lake
Lewis's Woodpecker (Scott Chalmers) first 10/1

Good Birding!

Directions to birding spots and s on CoBus website:

Amy Davenport, Secretary, Colorado Birding Society Denver, CO
Contact CoBus/Report Interesting Birds: 303-324-7994
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