Date: 4/9/17 3:32 am
From: Amy Davenport <cobussec...> [cobirders] <cobirders-noreply...>
Subject: [cobirders] Colorado Rare Bird Alert for April 9, 2017
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: With the many reports coming in daily this spring, RBA will reflect
daily sightings, not long term sightings, visit Colorado Birding Society's
website everyday!

Reports added: 4/8
Adams (Greater Scaup, Burrowing Owl, Sage Thrasher, Barn Owl, Long-eared
Adams/Denver (Burrowing Owl)
Arapahoe (Sage Thrasher)
Boulder (Eastern Meadowlark, Common Loon)
Denver (Harris's Sparrow)
El Paso (White-throated Sparrow, Ladder-backed Woodpecker)
Jefferson (Burrowing Owl)
Jefferson/Douglas (Common Loon, Bonaparte's Gull, Eastern Phoebe)
Larimer (Long-billed Curlew)
Pueblo (Mountain Plover, Curve-billed Thrasher)
Weld (Eurasian Wigeon, Common Loon, Burrowing Owl, Greater White-fronted
Goose, Chestnut-collared Longspur, Greater Scaup, Short-billed Dowitcher,
Bonaparte's Gull, Sharp-tailed Grouse)
Bent (Barn Owl, Cassin's Sparrow)
Crowley (Long-billed Curlew, Bonaparte's Gull, Mountain Plover)
Otero (Curve-billed Thrasher, Bonaparte's Gull)
Prowers (Northern Cardinal)
Lincoln (Mountain Plover, Chestnut-collared Longspur)
Morgan (Willet)
Yuma (Greater Prairie-Chicken, Eastern Bluebird)
Chaffee (Williamson's Sapsucker)
Clear Creek (White-tailed Ptarmigan)
Gunnison (Gunnison Sage-Grouse)
Jackson (Greater Sage-Grouse)
Mesa (Chukar, Black-throated Sparrow, Sagebrush Sparrow, Pinyon Jay, Barn
Owl, Sage Thrasher, Long-billed Curlew, Boreal Owl, Lewis's Woodpecker)
Montrose (Dusky Grouse)
Routt (Sharp-tailed Grouse, Common Loon)
Saguache (Short-billed Dowitcher)


Adams County
++++Jim Baker Reservoir area
Greater Scaup --see map (Gabriel Wiltse) first 4/8
+++Rocky Mountain Arsenal
Burrowing Owl (4, 2 locations) (Stevens:Kosten/Alison Hixon) (first 3/31)
2; last 4/8
(new wildlife drive: north of mile 5 & near Havana & 88th Avenue)
Sage Thrasher (Gregg Goodrich) last 4/8
++++Barr Lake
Barn Owl (Kosten:Ehlmann) last 4/8
Long-eared Owl (2) (Kosten:Ehlmann) 2; last 4/8
++++First Creek Trail
Barn Owl (John Breitsch) (first 3/10) 2; last 4/7

Adams/Denver Counties
++++DIA Owl Loop
Burrowing Owl (3) --prairie dog town at W. Cargo Road & Third Creek
(Stevens/Kosten:Ehlmann) (first 3/15) last 4/8

Arapahoe County
++++Willow Spring Open Space
Sage Thrasher (Jared Del Rosso) first 4/8
++++Cherry Creek Reservoir
Lesser Black-backed Gull (Dave King) last 4/7
Sage Thrasher (Stephan Lorenz) first 4/6
Fox Sparrow (red form) --East Boat Ramp upper parking lot (Cheryl
Teuton/Jacob Washburn) (first 3/31) last 4/5
++++Ketring Park and Lake
Eastern Screech-Owl (Cynthia Madsen:David Hill) last 4/7
++++Strasburg Road (CR 157)
Chukar (2) (Cheri Phillips) first 4/6
(highly likely that these are escaped birds, dog owners use Chukar to
train their dogs)

Boulder County
++++Greenlee Preserve/Waneka Lake
Eastern Meadowlark (Ted Floyd/Glenn Walbek) (first 4/7) last 4/8
(field just west of Waneka Lake, i.e., southwest of Greenlee Preserve
++++Baseline Reservoir
Common Loon (Jeff Parks/Emil Yappert) (first 3/29) 2; last 4/8
++++Walden Ponds
Black Phoebe --Boulder Creek/75th street (Jonathan Montgomery/Susan
Rosine) (first 3/22) last 4/7
Swamp Sparrow (Art Reisman) first 4/6

Denver County
++++Westerly Creek Park
Harris's Sparrow --east of 2365 Beeler/south of retention area (Jason
Bidgood/Marion Warren) (first 3/5) last 4/8
++++Marston Reservoir
Greater Scaup (Doug Kibbe) first 4/7
Common Loon (Doug Kibbe) first 4/5

Douglas County
++++Castlewood Canyon State Park
Barn Owl (Karen Metz) first 4/6

El Paso County
++++Bear Creek Regional Park
White-throated Sparrow --feeders by nature center (Steve Getty) (first
1/4) last 4/8
++++Birdsall Road
Ladder-backed Woodpecker (Carragher/Chris Brobin) (first 3/19) last 4/8
++++Squirrel Creek Road Area
Burrowing Owl (2) --NE of Ellicott Hwy; see map (Somershoe) first 4/7
++++Hanover Road
Burrowing Owl (2) --east/DeGrout Road (Mark Minner-Lee/Scott Somershoe)
(first 3/30) last 4/7
Curve-billed Thrasher --west/DeGrout Road (Somershoe) first 4/7
Sage Thrasher --Meridian Rd/south/Hanover (Somershoe) first 4/7
++++Fountain Creek Regional Park
Eastern Bluebird (Chris Brobin) first 4/7

El Paso/Pueblo Counties
++++Chico Basin Ranch (fee area)
Eastern Phoebe --HQ (John Drummond) first 4/7
Ladder-backed Woodpecker (3) --headquarters (John Drummond) last 4/7

Jefferson County
++++Robert A. Easton Regional Park
Burrowing Owl (2) (Brian Johnson/Kibbe:Goldthwait) (first 4/6) last 4/8
++++Reynolds Park
Northern Pygmy-Owl (Scott Somershoe) last 4/6
Long-eared Owl --Campgrounds parking lot (Wood/Somershoe) (first 3/21)
again 4/6
++++County Road 122
Northern Saw-whet Owl (Scott Somershoe) last 4/6
++++Genesee Mountain Park
Williamson's Sapsucker (2) (Richard Stevens/Joan Baker) (first 3/10) last

Jefferson/Douglas Counties
++++Chatfield Reservoir
Common Loon (Gavin Bieber) first 4/8
Bonaparte's Gull (2) (Doug Shoffner) first 4/8
Eastern Phoebe --upstream kingfisher bridge (Gregg Goodrich/Riley Morris)
(first 3/25) 1; last 4/8

Larimer County
++++Boyd Lake State Park
Long-billed Curlew (6) (Georgia Doyle) first 4/8
Bonaparte's Gull (Andy Bankert) first 4/7
Lesser Black-backed Gull (2) (Bankert) last 4/7
++++Horseshoe Lake
Bonaparte's Gull (Bankert) first 4/7
Lesser Black-backed Gull (5) (Bankert) first 4/7
++++Horsetooth Reservoir
Northern Pygmy-Owl (Arvind Panjabi) first 4/6
++++Lily Lake
Williamson's Sapsucker (female) (Dan O'Donnell) first 4/6
++++Oxbow Natural Area
Eastern Phoebe (David Wade/Nick Moore) (first 4/1) last 4/6

Pueblo County
++++IL Road, north of Youtsey Airport
Mountain Plover (2) (Richard Sayles) first 4/8
Curve-billed Thrasher (4) (O'Brien) last 4/8
++++Pueblo Mountain Park
Acorn Woodpecker (Scott Somershoe) last 4/7
Williamson's Sapsucker (Chavez:Hudak/Somershoe) (first 3/5) last 4/7

Weld County
++++Weld County Road 37/CR 46 Ponds
Eurasian Wigeon --northeast pond (Luke & Tracy Pheneger/Ric Olson) (first
3/14) last 4/8
++++Old Highway 52 Pond
Common Loon (3) (Mike Patterson) reported 4/8
++++Beebe Draw Ponds
Burrowing Owl --CR 42 (Gene Rutherford) last 4/8
++++Firestone Gravel Pits
Greater White-fronted Goose (Ric Olson) last 4/8
++++Pawnee National Grasslands area
Chestnut-collared Longspur (2) --CR 114/east/CR 47 (Gene Rutherford)
first 4/8
Mountain Plover (2) --location unknown (Stephan Lorenz) first 4/7
Chestnut-collared Longspur --location unknown (Lorenz) first 4/7
Chestnut-collared Longspur (3) --Murphy's Pasture (Simon Harvey) first 4/7
Burrowing Owl --CR 33, btw CR 98/CR 100 (Gary Lefko) first 4/2
++++Loloff Reservoir
Greater Scaup (Tom & Debbie Behnfield) last 4/8
++++West of Behrens Reservoir
Short-billed Dowitcher (2) (Christine Alexander) reported 4/8
++++Union Reservoir
Bonaparte's Gull (3) (Mark Miller/Laura Steadman) (first 3/18) 6; last
++++CR 134 btw CR 111 & CR 115
Sharp-tailed Grouse (19) (Bill Kaempfer) first 4/8
(debatable if these are countable birds)
++++Pawnee National Grasslands area
Mountain Plover (2) --location unknown (Stephan Lorenz) first 4/7
Chestnut-collared Longspur --location unknown (Lorenz) first 4/7
Chestnut-collared Longspur (3) --Murphy's Pasture (Simon Harvey) first
++++Firestone Gravel Pits
Greater White-fronted Goose (Riley Morrise) last 4/7
++++Union Reservoir
Bonaparte's Gull (3) (Mark Miller/Nick Moore) (first 3/18) 18; last 4/6
Mew Gull (Mlodinow) first 4/5


Baca County
++++Two Buttes Reservoir & area
Bonaparte's Gull (Stevens:Jenkins:Meyerotto) first 4/6
Eastern Phoebe (Washburn:Simmons/Stevens & all) (first 4/2) last 4/6
++++Gravel Road just East and North of Campo Lek
Cassin's Sparrow (1) (Stevens:Humbolt/Stevens & all) (first 3/24) last
++++County Road M, near CR 32
Short-eared Owl (Stevens & all) first 4/6
++++Cottonwood Canyon
Western Screech-Owl (Stevens) last 4/6

Bent County
++++John Martin Reservoir area
Barn Owl --Lake Hasty (Michael O'Brien) first 4/8
Cassin's Sparrow --CR CC/west/CR 21 (Mike McCloy) first 4/8

Crowley County
++++Lake Meredith
Long-billed Curlew (Michael O'Brien) first 4/8
Bonaparte's Gull (4) (Mike McCloy/O'Brien) (first 4/7) last 4/8
Snowy Plover (2) --feedlot sewage area (Mike McCloy) first 4/7
++++Lake Henry
Mountain Plover (Mlodinow) first 4/8
Bonaparte's Gull (Van Truan/o"Brien) (first 3/27) 7; last 4/8
Chihuahuan Raven (Mlodinow) reported 4/8

Otero County
++++County Road FF & CR 28
Curve-billed Thrasher (Steve Mlodinow) first 4/8
++++Lake Cheraw
Bonaparte's Gull (3) (David Stejskal/Mlodinow) (first 4/2) 21; last 4/8

Prowers County
++++Lamar Community College Library
Northern Cardinal (Mike McCloy) last 4/8


Lincoln County
++++County Road P & CR 36
Mountain Plover (2) (John Vanderpoel) first 4/8
++++County Road 43 area
Mountain Plover (2) --CR 43/south/hwy 24 (Tom Johnson) first 4/8
Chestnut-collared Longspur (2) --CR 43/south/hwy 24 (Tom Johnson) first
Morgan County
++++Brush Prairie Ponds Wildlife Area
Willet (Sherri Hansen) first 4/8

Yuma County
++++CR 45
Greater Prairie-Chicken --Between Hwy 385 and Lek, 1.7 miles/east/hwy 385
(Stevens:Kosten/Art Hudak) 2; (first 2/18) last 4/8
(Between Hwy 385 and Lek, 1.7 miles/east/hwy 385)
++++Wray Fishing Unit
Eastern Bluebird (2) (CoBus/Eric Hough) (last 1/1) 4; last 4/8
++++Wray Community Hospital
Yellow-bellied Sapsucker (Stevens & all) first 4/5
++++Wray City Park
Eastern Phoebe (Stevens & all) first 4/5
++++Wray Fishing Unit
Eastern Phoebe (Stevens:Humboldt/Stevens & all) (first 3/25) last 4/5
Barn Owl (Stevens:Humboldt) first 3/25
++++Stalker Pond
Northern Cardinal (Stevens:Humboldt/Stevens & all) (first 3/25) last 4/5
++++Beecher Island
Field Sparrow (Craig Robson/Stevens) (first 4/1) last 4/5
Eastern Phoebe (Stevens & all) first 4/5
++++Bonny Reservoir Area
Eastern Screech-Owl --Hale Ponds (Stevens &amp; all) last 4/5


Archuleta County
++++Hatcher Reservoir
Bonaparte's Gull (Ben Bailey) first 4/6
++++Pinon Lake Reservoir
Trumpeter Swan (considered a released or TAME bird) last 4/6

Chaffee County
++++Chaffee County
Williamson's Sapsucker
(6) --CR 368/CR 361 (Hagenlocher) first 4/8
Pinyon Jay
(100) --Pinyon Hills (see map) (Michael O'Brien) last 4/7
(6) --CR 356-7 (Hagenlocher/O'Brien) (first 4/6) last 4/7
++++Monarch Pass
American Three-toed Woodpecker (2) (Stevens & all/Michael O'Brien) (first
3/5) 1; last 4/7
++++Sands Lake Wildlife Area
Barrow's Goldeneye (8) (Gwen Moore/Michael O'Brien) (first 11/13) 1; last

Clear Creek County
++++Loveland Pass
White-tailed Ptarmigan
(2) --below east summit (Stevens & Stein/Scott Downes) (first 1/21) 2;
last 4/8
(1) --west of Hwy 9, first pullover east of Hwy 9 & south of Summit
(Stevens & all) first 4/3
(3) --below west summit (Washburn:Simmons/Stevens) (first 11/22) 1; last
(1) --ridge north of first pullover west of Hwy 9, south of Summit
(Stevens &amp; all) first 3/2
++++Guanella Pass
American Three-toed Woodpecker --Campgrounds (Stevens:Kosten/Craig
Robson) (first 9/25) 3; last 3/28
White-tailed Ptarmigan (Stevens:Kosten/Doug Kibbe & all) (first 9/25) 16;
last 2/16

Costilla County
++++Smith Reservoir
Sagebrush Sparrow (John Rawinski) last 4/5

Delta County
++++Fruitgrower's Reservoir area
Lewis's Woodpecker (2) --Meyers Road (Stevens & all/Jordan Roderick:David
Stejski) (first 3/4) last 4/7
++++Escalante Canyon
Black Phoebe (Stevens:Humboldt/Jan Hansen:Jeff Kline) (first 3/22) 2;
last 4/3
Chukar (Stevens:Humboldt/Jan Hansen) (first 3/22) 2; last 4/3

Fremont County
++++Valco Ponds, Canon City
Black Phoebe --River bridge (Adams/Joan Baker) (first 3/19) last 4/7
++++Brush Hollow Wildlife Area
Pinyon Jay (2) (Norm Lewis) last 4/7
++++Arkansas Riverwalk
Eastern Phoebe --Ash Street/Arkansas River (Scott Somershoe) first 4/7
++++Canon City
Curve-billed Thrasher (2) --Grandview Avenue (Mike Serruto/Norm Lewis)
(first 2/18) last 4/7
++++County Road 19
Curve-billed Thrasher (Scott Somershoe) first 4/7

Grand County
++++Windy Gap Reservoir
Barrow's Goldeneye (10) (Noreen Baker/Joe Blanda) (first 3/13) 25; last
++++Grand Lake
Rosy Finches (16, 3 species) (Joe Blanda) first 4/6

Gunnison County
++++Waunita Hot Springs Area
Gunnison Sage-Grouse (up to 25) (Stevens & all/Richard Sayles) (first
3/5) 4; last 4/8
++++Crested Butte
Brown-capped Rosy Finch (150) --94 Aspen Lane (Roderick:Sommers/Sabrina
Hepburn) (first 4/6) 50; last 4/7
Black Rosy Finch (6) --94 Aspen Lane (Horak/Hepburn) (first 4/5) 1; last
Gray-crowned Rosy Finch (50) --94 Aspen Lane (Horak/Hepburn) (first 4/5)
last 4/7
++++Blue Mesa Reservoir
Barrow's Goldeneye (3) --east end (David Stejskal:Jordan Roderick) first

Jackson County
++++County Road 26b
Greater Sage-Grouse (up to 117) --CR 26b (Stevens:Michaels/David
Tonnessen) (first 12/17) 10; last 4/8
++++Colorado State Forest
Boreal Owl --Hwy 14, west of Cameron Pass (Stevens) (first 3/1) 2; last
American Three toed Woodpecker (m) --Across Hwy 14/north of Colorado
State Forest Visitor's Center (Stoll) last 4/1

La Plata County
++++Wildcat Canyon
Acorn Woodpecker (Mel & Jeanne Goff) last 3/14

Mesa County
++++Cameo/Coal Canyon
Chukar (2) Stevens & all) (first 3/3) last 4/8
Black-throated Sparrow (2) (Hansen:Gabriel:Pitts/Stevens) (first 4/4)
last 4/8
++++Baxter Pass Road
Sagebrush Sparrow (1) --CR 4 (Stevens & all) (first 3/4) last 4/8
++++Colorado National Monument
Pinyon Jay (8) (Stevens & all) last 4/8
Chukar (2) (Ellen & Jerry Horak) first 4/7
Black-throated Sparrow (2) --eastern entrance (Stevens) first 4/8
++++Clifton Nature Park Trail
Barn Owl --Clifton Nature Park trail (Vollmar/Mike Henwood) (first 3/19)
last 4/8
++++2.8 Road North of Old Highway 6/50
Sage Thrasher (Mike Henwood) first 4/8
Long-billed Curlew --west of 1.8 Road (Mike Henwood) first 4/8
Sagebrush Sparrow (7) (Nick Korte/Craig Robson) (first 3/16) 4; last 4/7
++++State Line Area/Brewster Ridge
Sagebrush Sparrow (6) (Mike Henwood) last 4/8
++++Connected Lakes State Park; Blue Heron section
Black Phoebe (2) --below Redlands Powerplant outflow (Cary Atwood) first
++++Grand Mesa North
Boreal Owl --south of Spruce Grove Campgrounds (Stevens & all) (first
3/3) 2; last 4/8
Northern Pygmy-Owl --Powderhorn Ski area (Stevens & all) first 3/13
Lewis's Woodpecker (2) --G Road (Joan Baker) first 4/8

Moffat County
++++Oxbow Wildlife Area
Sage Thrasher (Stevens/Tresa Moulton) (first 3/14) last 4/6

Montezuma County
++++Cortez Municipal Airport area
Black-throated Sparrow (3) (Simone Marler) first 4/6

Montrose County
++++Black Canyon of Gunnison National Park
Dusky Grouse (Stevens & all/Joan Baker) (first 3/4) 1; last 4/8
Williamson's Sapsucker --Campgrounds (Jordan Roderick) first 4/7
Fox Sparrow (3, slate colored) (Roderick) last 4/7
(South Rim Drive & Campgrounds)
(NOTE: South Rim Road is closed at Visitor's Center)

Park County
++++Eleven Mile Reservoir
Common Loon (David Suddjian) first 4/3
Red-necked Grebe (Suddjian) first 4/3
Greater Scaup (22) (Suddjian) first 4/3
Sage Thrasher (2) (Suddjian) first 4/3
++++County Road 59 near Mineral Road near Spinney Mountain Reservoir
Tundra Swan (2) (David Suddjian) first 4/3
++++Kenosha Pass
American Three-toed Woodpecker --around Pond (Suddjian) last 4/3

Routt County
++++Twenty Road Leks
Sharp-tailed Grouse (5) (Stevens & all/Michael Hilchey) (first 3/3) last
++++Stagecoach State Recreation Area
Common Loon (Craig Robson) first 4/8

Saguache County
++++Russell Lakes Wildlife Area
Short-billed Dowitcher (John Cobb) reported 4/8

Summit County
++++Dillon Reservoir
Barrow's Goldeneye --Soda Creek inlet (Wiltse:Lyon:Weaver/Weaver) (first
2/4) 1; last 4/6

Teller County
Gray-crowned Rosy Finch --Spicer & 1st ave (Gayle McGinty) 31; last 4/5

Good Birding!

Directions to birding spots and maps on CoBus website:

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