Compiler: Joyce Takamine
Date: April 5, 2018
e-mail: RBA AT cobirds.org
This is the Rare Bird Alert for Thursday, April 5 sponsored by Denver Field Ornithologists and the Bird Conservancy of the Rockies.
Highlight species include: (* indicates new information on this species)
NOTE: The RBA is now using the new AOU checklist and the order of families has changed.
Snow Goose (*Boulder, Garfield)
Greater White-fronted Goose (Jefferson, *Prowers, Weld)
Wood Duck (Summit)
White-winged Scoter (Arapahoe)
Barrow's Goldeneye (Arapahoe)
Ring-necked Pheasant (Boulder, Weld)
Dusky Grouse (Delta)
Sharp-tailed Grouse (Weld)
Red-necked Grebe (Pueblo)
White-winged Dove (Weld)
Chimney Swift (*Boulder)
White-throated Swift (*Chaffee, Pueblo)
Virginia Rail (Chaffee)
Sandhill Crane (Boulder, Chaffee, Jefferson, *Rio Grande, Saguache, Weld)
Black-necked Stilt (Rio Grande)
Mountain Plover (El Paso, Weld)
Long-billed Curlew (Weld)
Baird's Sandpiper (Larimer, Weld)
Least Sandpiper (La Plata)
Long-billed Dowitcher (*El Paso, Mesa)
Spotted Sandpiper (El Paso)
Lesser Yellowlegs (Denver Douglas, *El Paso, *Jefferson, Pueblo, Weld)
Bonaparte's Gull (*Boulder, *Chaffee, Larimer)
Franklin's Gull (Larimer)
California Gull (Douglas, Mesa)
Iceland Gull (El Paso, Pueblo)
Glaucous Gull (*Washington)
American White Pelican (Douglas)
Great Egret (*Chaffee)
Snowy Egret (Adams, Denver)
White-faced Ibis (*Rio Grande)
Turkey Vulture (Douglas, Pitkin)
Osprey (Boulder, Mesa, Pueblo, Weld)
Northern Goshawk (Jefferson, Larimer, Weld)
Swainson's Hawk (*Jefferson, Weld)
Burrowing Owl (El Paso, Jefferson, Weld)
Red-napped Sapsucker (Douglas)
Ladder-backed Woodpecker (*El Paso)
Black Phoebe (Fremont, Mesa)
Eastern Phoebe (*Boulder, *Custer, Douglas, Fremont)
Vermilion Flycatcher (*El Paso)
Woodhouse's Scrub-Jay (*Adams)
Chihuahuan Raven (Fremont, El Paso)
Tree Swallow (Larimer)
Violet-green Swallow (Pueblo)
Northern Rough-winged Swallow (Archuleta)
Bank Swallow (Larimer)
Cliff Swallow (Larimer, Weld)
Barn Swallow (Adams, Boulder, Broomfield, *Chaffee, Larimer, Weld)
Mountain Chickadee (Weld)
Bushtit (Weld)
Blue-gray Gnatcatcher (Arapahoe)
Golden-crowned Kinglet (Weld)
Eastern Bluebird (Weld)
Curve-billed Thrasher (*El Paso)
Brown Thrasher (Baca)
Sage Thrasher (*Boulder, El Paso, Weld)
Bohemian Waxwing (Clear Creek)
Northern Mockingbird (Baca, Broomfield, El Paso)
Gray-crowned Rosy-Finch (*San Miguel)
Black Rosy-Finch (*San Miguel)
Brown-capped Rosy-Finch (*San Miguel)
Common Redpoll (Summit)
Red Crossbill (Adams)
Chestnut-collared Longspur (El Paso)
Cassin's Sparrow (*El Paso)
Vesper Sparrow (*Boulder, Jefferson)
Black-throated Sparrow (Otero)
Sagebrush Sparrow (Boulder, Douglas, Jefferson)
Savannah Sparrow (Denver, Saguache, Weld)
Lincoln's Sparrow (Boulder, Broomfield, Denver, Douglas, Larimer, Mesa, Saguache, Summit)
White-throated Sparrow (Mesa)
Harris's Sparrow (*Denver, El Paso)
Yellow-headed Blackbird (Montrose, Rio Grande)
EASTERN MEADOWLARK (Weld)
Brown-headed Cowbird (Boulder, Broomfield, Weld, Yuma)
Common Yellowthroat (Douglas)
Pine Warbler (Larimer)
Northern Cardinal (*Boulder)
ADAMS COUNTY:
---On March 31 at Lowell Ponds (Clear Creek Valley Park), Lorraine Lanning reported 2 Snowy Egret. On April 1 at Lowell Ponds (Clear Creek Valley Park), Gwen Moore reported Snowy Egret. On April 3 at Lowell Ponds (Clear Creek Valley Park), Christy Payne reported Snowy Egret.
---On March 31 at Barr Lake Boat Ramp area, Heather and Riley Morris reported Barn Swallow.
---On April 1 at East Lake Shores Park, Brian Genge reported 15 Red Crossbills. On April 3 at east Lake Shores Park, Don Mullson reported Woodhouse's Scrub-Jay.
---On April 3 at Lake Sangraco, Christy Payne reported Snowy Egret.
ARAPAHOE COUNTY:
---On March 31 at South Platte Reservoir, Sheridan Samano and Tom Bunker reported White-winged Scoter.
---On March 31 at South Platte Park C470 area, Edward Donnan reported 2 f Barrow's Goldeneyes.
---On April 2 on High Line Canal Trail w Mineral Ave to S Elati St, Bill Schreitz reported Blue-gray Gnatcatcher.
ARCHULETA COUNTY:
---On April 2 at Pagsoa Springs Town Park, Ben Bailey reported Northern Rough-winged Swallow
BACA COUNTY:
---On April 1 at Springfield Water Treatment Plant, Tony Leukering reported Brown Thrasher and Northern Mockingbird.
BOULDER COUNTY:
---On April 1 at Boulder Reservoir Complex, Peter Burke reported 2 Snow Geese. On April 4 at Boulder Reservoir complex Ted Floyd reported 2 Snow Geese, Bonaparte's Gull, Sage Thrasher, and Vesper Sparrow; Dan Zmolek and Leslie S reported 2 Snow Geese and Sage Thrasher.
---On March 31 at Walden/Sawhill Ponds, Laura Steadman and Melissa Mezger reported 2 Osprey, Lincoln's Sparrow and Brown-headed Cowbird, Chuck Hundertmark and DFO Field Trip reported 2 Osprey and 2 Barn Swallow.
---On March 30 at White Rocks Trail, Christian Nunes reported Ring-necked Pheasant, Sagebrush Sparrow, and Lincoln's Sparrow. On March 31 at White Rock Trail, Peter Burke and several other birders reported Sagebrush Sparrow and some reported Sandhill Crane. On April 1 on White Rocks Trail, Ron Podhajsky reported Sagebrush Sparrow.
---On March 31 at Boulder Creek and 75th St. Dan Zmolek and Leslie S reported Lincoln's Sparrow; Norm Lewis reported Eastern Phoebe. On April 1 at Boulder Creek and 85th St, Peter Burke reported Eastern Phoebe. On April 4 at Boulder Creek and 75th St, Nancy Ries Morrison and Ted Floyd reported Eastern Phoebe.
---On April 4 at Pella Crossing OS, Carl Starace reported 5 Chimney Swift.
---On April 4 at Melody Park (16th and Kingwood) in Boulder, Bob Fiehweg reported Northern Cardinal.
BROOMFIELD COUNTY:
---On March 31 at Plaster Reservoir, David Ely reported Lincoln's Sparrow and Brown-headed Cowbird. On April 1 at Plaster Reservoir, Matt Hofeditz reported Barn Swallow.
CHAFFEE COUNTY:
---On April 2 at Buena Vista Ice Pond, Christian Hagenlocher reported Great Egret, 5 Sandhill Cranes, and Bonaparte's Gull. On April 3 at Buena Vista Ice Pond (view from road), Mike Buccieri reported Bonaparte's Gull. On April 4 at Buenta Vista Ice Pond (view from road), Christian Hagenlocher reported Great Egret and Bonaparte's Gull.
---On April 4 on CR 367, Christian Hagenlocher reported 2 Barn Swallows.
CLEAR CREEK COUNTY:
---On April 1 while snowshoeing up Guanella Pass, Glenn Walbek reported 14 Bohemian Waxwing about halfway up at about 11,300 ft; Christian Hagenlocher reported 18 Bohemian Waxwings.
CUSTER COUNTY:
---On April 4 in Wetmore Area, Jerry DeBoer reported 2 Eastern Phoebe.
DELTA COUNTY:
---On April 2 above Hotchkiss in Gambel Oak, Leon Thurmon reported Booming Dusky Grouse.
DENVER COUNTY:
---On March 30 at First Creek at DEN OS, Cheri Phillips reported Harris's Sparrow. On April 1 at First Creek at DEN OS, John Breitsch and Jeff Dawson reported Harris's Sparrow. On April 2 at First Creek at DEN OS, Dan Pointon reported Harris's Sparrow and Savannah Sparrow. On April 4 at First Creek at DEN OS, Don Glasco reported Harris's Sparrow.
---On March 31 at Windsor Lake, Christina Yeagley reported Lesser Yellowlegs.
---On April 1 at Washington Park, Joe Roller reported Snowy Egret on Grasmere Lake.
---On April 1 at Westerly Creek Park, Jason Bidgood reported Harris's Sparrow bet Creek and Beehler at about 23rd Ave.
DOUGLAS COUNTY:
---On March 30 at Chatfield SP, Tom Gannon reported 3 Sagebrush Sparrows hopping around Heronry Picnic Area parking lot. On March 31 at Chatfield SP, Joey Kellner et al reported Eastern Phoebe. On March 31 at Chatfield SP Plum Creek Delta, Matt Crooks reported Common Yellowthroat.
---On March 30 at Sedalia, Norm Lewis reported Red-naped Sapsucker.
---On April 1 at Parker Regional Park (aka Salisbury Equestrian Park), Cynthia Kristensen reported Lesser Yellowlegs. On April 2 at Parker Regional Park (aka Salisbury Equestrian Park), Tim Ryan reported Lesser Yellowlegs.
EL PASO COUNTY:
---On March 31 on Hanover Road, Kevin Ash reported 4 Cassin's Sparrows. On April 1 on Hanover Rd, Ginny Bergstrom reported Ladder-backed Woodpecker, Chihuahuan Raven, and Curve-billed Thrasher; Robb Hinds reported 5 Burrowing Owls and 7 Curve-billed Thrashers; Roger Masey reported Cassin's Sparrow and Curve-billed Thrasher.
---On March 31 at Ramah Reservoir SWA, Alan and May-Lynne Ketcham reported Long-billed Dowitcher. On April 4 at Ramah Reservoir SWA, Cheri Phillips reported Long-billed Dowitcher.
---On March 31 at Squirrel Creek Rd reservoir, Aaron Driscoll, Jim Merritt, and David Tonnessen reported 2 Lesser Yellowlegs. On April 2 at Squirrel Creek Rd Reservoir, Alan and Mary Lynne Ketcham, John Drummond, Joy and Leonard Lake reported Lesser Yellowlegs; Gloria Nikolai reported 3 Lesser Yellowlegs. On April 3 at Squirrel Creek Road Reservoir, Diane Roberts, Chris Brobin and Tanja Britton reported Lesser Yellowlegs.
---On March 31 at Hanover Road Windmill Oasis, Aaron Driscoll reported Ladder-backed Woodpecker.
---On March 31 at Fountain Creek Regional Park/ Willow Spring Road, Chris McReynolds reported Spotted Sandpiper.
---On April 1 at Hanover Fire Station, Bill Kosar found m Vermilion Flycatcher and many other birders were able to see it. Brandon Percival also reported Cassin's Sparrow and Mel and Jeanne Golf reported Curve-billed Thrasher. On April 2 at Hanover Fire Station, Linda Hodges and many other birders reported m Vermilion Flycatcher and Curve-billed Thrashers, and Cassin's Sparrows. On April 3 at Hanover Fire Station, David Tonnessen and several other birders reported that the Vermilion Flycatcher continues with Curve-billed Thrashers. On April 4 at Hanover Fire Station, Christy Payne and several other birders reported Vermilion Flycatcher.
---On April 2 on South Peyton Hwy at 1st Ranch house south of Hanover Fire Station on west side of road from 2:30 to 4:00 pm Gregg Goodrich and Debbie Barnes reported Vermilion Flycatcher.
---On April 2 at Chico Basin Ranch on road to banding station, Linda Hodges reported 4 Sage Thrashers.
---On April 2 at Hanover Road and De Groot, Linda Hodges reported 4 Burrowing Owls. On April 4 at Hanover Road and De Groot, Rod Schmidt reported Curve-billed Thrasher.
---On April 2 at Squirrel Creek Rd and Bar O Rd, John Bruder reported 6 Chestnut-Collared Longspurs. On April 2 at Squirrel Creek Rd East, Monday Birders reported 3 Burrowing Owls and 3 Chestnut-collared Longspurs.
---On April 3 on De Groot Rd, Loch Kilpatrick reported 2 Cassin's Sparrows.
---On April 3 on Hanover Road, Gregg Goodrich reported 2 Cassin's Sparrows. On April 4 on Hanover Road, Cheri Phillips reported 2 Ladder-backed Woodpeckers and Diana Beatty reported Cassin's Sparrow
FREMONT COUNTY:
---On April 2, SeEtta Moss reported Black Phoebe at Florence River Park, MacKenzie Ave Bridge in Canon City, Sell's Lake in Canon City.
---On April 3, SeEtta Moss reported 2 Eastern Phoebe at Tunnel Drive Rd in Canon City, and 2 Eastern Phoebe at Sell's Lake Trailhead to Canon City Riverwalk.
GARFIELD COUNTY:
---On April 3 at Ponds near Rifle Garfield Airport (view from road), JoAnn Riggle reported 2 Snow Geese.
JEFFERSON COUNTY:
---On March 30 at Chatfield SP wetlands, Bill Eisele reported Sagebrush Sparrow.
---On March 31 at Waterton canyon from Waterton Rd to overhead pipes, Bez Bezuidenhout reported Eastern Phoebe.
---On March 31 on Cub Creek Trail in Evergreen, Greg Levandoski reported Northern Goshawk.
---On April 1 at Arvada Blunn Reservoir, Steven Snyder reported Burrowing Owl near 64th Ave entrance.
---On April 1 on West Woods Golf Course, Steven Snyder reported Greater White-fronted Goose.
---On April 3 at Wheat Ridge Greenbelt Prospect Park and Lake, Tuesday Birders and Matt Clark reported 2-3 Lesser Yellowlegs and 100 Sandhill Cranes. On April 4 at Wheat Ridge Greenbelt Prospect Park and Lake, Ginny Bergstrom reported 3 Lesser Yellowlegs.
---On April 3 at Bear Creek Lake Park at Pelican Point, Mark Chavez and Myron Gerhard reported Vesper Sparrow.
---On April 4 on Kipling going north, north of Ridge Rd, Anne Price reported Swainson's Hawk.
LA PLATA COUNTY:
---On April 3 at Pastoroius Reservoir, Jason St. Pierre reported Least Sandpiper.
LARIMER COUNTY:
---On March 30 at Wild Horse Birdfeeder, John Reichhardt reported Pine Warbler.
---On March 29 at Arapahoe Bend NA Rigden Reservoir (Strauss Cabin Lake), Lori Zabel reported Bonaparte's Gull, Franklin's Gull, Tree Swallow, 4 Barn Swallows, 8 Cliff Swallows, and 3 Lincoln's Sparrows; Nick Komar reported 3 Bonaparte's Gulls, 3 Franklin's Gulls, and 3 Bank Swallows. On March 30 at Arapahoe Bend NA Rigden Reservoir (Strauss Cabin Lake), David Wade reported 3 Bonaparte's Gulls, 3 Franklin's Gulls, 3 Tree Swallows, 2 Barn Swallows, 3 Cliff Swallows; Colby Plante reported 2 Bonparte's Gulls, and 8 Franklin's Gulls. On April 2 at Arapahoe Bend NA Rigden Reservoir (Strauss Cabin Lake), Lori Zabel reported Baird's Sandpiper.
---On March 31 at Fossil Creek Reservoir NA West Blind, Jacy Bernath-Plaisted reported Bonaparte's Gull.
---On April 1 at Running Deer and Cottonwood Hollow NA, Skyler Bol reported Cliff Swallow.
MESA COUNTY:
---On April 1 on Colorado River Trail Audubon Section, Katey Buster reported Black Phoebe at Phoebe Rock.
---On March 30 at Grand Junction Wildlife Area, Mike Henwood and Katey Buster reported Lincoln's Sparrow.
---On March 31 at Horsethief Canyon SWA, David Price reported 2 Black Phoebe. On April 2 at Horsetheif Canyon SWA, Carol Ortenzio and Katey Buster reported 2 Black Phoebe and White-throated Sparrow.
---On April 1 at 23 ¼ Rd pond, Lee Stigen reported 2 Long-billed Dowitchers.
---On April 1 at Audubon Sanctuary, Lee Stigen reported Osprey.
MONTROSE COUNTY:
---On March 31 at Bridges Drive in Montrose (town), Betty Fenton reported Yellow-headed Blackbird.
OTERO COUNTY:
---On March 30, Glenn Walbek reported Black-throated Sparrow.
PITKIN COUNTY:
---On April 1 on Owl Creek Ranch Rd, Catherine Hagen reported Turkey Vulture.
PROWERS COUNTY:
---On April 4 at Northgate, Jane Stulp reported 2 Greater White-fronted Geese.
PUEBLO COUNTY:
---On March 31 at Pueblo Reservoir SWA NW side, Brandon Percival reported a breeding plumaged Red-necked Grebe and Violet-green Swallow; Robb Hinds reported the grebe and 2 Osprey; Jim Merritt and David Tonnessen reported grebe and Lesser Yellowlegs and Violet-green Swallow.
RIO GRANDE COUNTY:
---On April 1 at Monte Vista NWR, John Rawinski reported 4 – 5,000 Sandhill Cranes and good numbers of Yellow-headed Blackbirds and 4 Black-necked Stilts. On April 4 at Monte Vista NWR, Dale Pate reported 2 White-faced Ibis and 400 Sandhill Cranes.
SAGUACHE COUNTY:
---On March 31 at Russell Lakes SWA, John W Cobb reported 130 Sandhill Cranes, Savannah Sparrow, and Lincoln's Sparrow.
SAN MIGUEL COUNTY:
---On April 4 at The Terraces, Eric Hynes reported 1 Gray-crowned (Hepburn's) Rosy-Finch, 4 Gray-crowned Rosy-Finch, 6 Black Rosy-Finch, and 140 Brown-capped Rosy-Finch.
SUMMIT COUNTY:
---On March 31 a Silverthorne Water Treatments Plan, Jack and Ryan Bushong reported pair of Wood Ducks and Lincoln's Sparrow.
---On March 31 at Bills Ranch area, Jack and Ryan Bushong reported Common Redpoll.
WASHINGTON COUNTY:
---On April 4 at Prewitt Reservoir, Norm Erthal reported Glaucous Gull.
WELD COUNTY:
---On March 31 at Glenmere Park, Sreemala Das Majumder and DFO Field trip reported Golden-crowned Kinglet; Shawn Mason reported 6 Bushtit and Mountain Chickadee. On April 2 at Glenmere Park, Shawn Mason reported 4 Bushtits.
---On April 1 on CR 124 from CR 111 east, Steve Mlodinow reported 9 Sharp-tailed Grouse.
---On March 31 at Union Reservoir, Gene Rutherford and Steve Mlodinow reported Osprey. On April 1 at Union Reservoir, Gene Rutherford reported White-winged Dove and Brown-headed Cowbird.
---On March 30 at Firestone Gravel Pits (view from road), Carl Starace reported Barn Swallow and 4 Cliff Swallows. On March 31 at Firestone Gravel Pits (View from road), Seemala Das Majumder and DFO Field Trip reported Ring-necked Pheasant and 3 Barn Swallows.
---On March 30 in Pawnee NG CR 136 between CR 99 and CT 105, Christine Alexander reported 2 Sharp-trailed Grouse. On April 1 in Pawnee NG CR 136 east of CR 99 Cheri Phillips reported 19 Sharp-tailed Grouse.
---On March 30 at Vista Ridge Bike Path, David Blue reported Mountain Chickadee.
---On March 31 at CR 59 Wetlands, Shawn Mason reported Baird's Sandpiper.
---On March 31 at Behrens Reservoir, Gene Rutherford reported 6 Black-necked Stilts, 3 Baird's Sandpipers, and 2 Lesser Yellowlegs; Rene Casias reported 8 Black-necked Stilits and 5 Lesser Yellowlegs. On April 1 at Behrens Reservoir, Gene Rutherford reported 4 Greater White-fronted Geese.
---On March 31 at Steward's Pond, Seemala Das Majumder and DFO Field trip reported Long-billed Curlew.
---On April 1 at Grover, David Ely reported 34 Sandhill Cranes and 4 Eastern Bluebirds.
---On April 1 on CR 44 between CR 41 and CR 43, David Ely reported Swainson's Hawk.
---On April 1 on Pawnee NG Murphy's Pasture Auto tour Stops 2 and 3, Cheri Phillips reported Burrowing Owl, Sage Thrasher and EASTERN MEADOWLARK.
---On April 1 at Lower Latham, Steve Mlodinow, Riley, and Heather Morris reported Savannah Sparrow.
---On April 1 at Clark Lake, Steve Mlodinow reported 6 Greater White-fronted Geese.
DFO Field Trips:
The DFO Field Trip for Thursday, April 5 will be to Fountain Creek Regional Park led by Diane Roberts (Samatha576 AT aol.com; 720-278-9025) This trip is full.
Good Birding,
Joyce Takamine
Boulder
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