Compiler: Joyce Takamine
e-mail: RBA AT cobirds.org
Date: May 6, 2017
This is the Rare Bird Alert for Saturday, May 6 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 changes.
Mute Swan (Weld)
Mexican Duck (San Miguel)
White-winged Scoter (Arapahoe)
Barrow's Goldeneye (Eagle)
Greater Sage-Grouse (Jackson)
Dusky Grouse (Larimer)
Sharp-tailed Grouse (*Weld)
Greater Roadrunner (*Baca)
LESSER NIGHTHAWK (*Bent)
Chimney Swift ( El Paso, Jefferson)
Sandhill Crane (*Boulder, Weld)
Black-bellied Plover ( Kiowa, Larimer)
Snowy Plover (Crowley, Kiowa)
Semipalmated Plover (Boulder, Crowley, El Paso, Jefferson, Kiowa, Larimer, Pitkin, Pueblo, Weld)
Piping Plover (Kiowa, Lincoln)
Mountain Plover (Weld)
Upland Sandpiper (Weld)
Whimbrel (*Boulder, Delta, El Paso, Kiowa, Larimer, Lincoln, Weld)
Long-billed Curlew (El Paso, Jefferson, Kiowa, La Plata, Larimer, Weld)
Ruddy Turnstone (Weld)
Stilt Sandpiper (Crowley, Weld)
Sanderling (Arapahoe, Crowley, Douglas, Larimer, Pueblo)
Dunlin (Kiowa)
Pectoral Sandpiper (Adams, Crowley, Kiowa, Weld)
Semipalmated Sandpiper (Arapahoe, Boulder, Crowley, Douglas, *El Paso, Jackson, Kiowa, La Plata, Larimer, Lincoln, Mesa)
Short-billed Dowitcher (Mesa, Weld)
Solitary Sandpiper (Arapahoe, Boulder, Denver, El Paso, Jefferson ,La Plata, Larimer, Prowers)
Green Heron (Boulder, Jefferson)
Glossy Ibis (Arapahoe, *Jackson, Larimer, Logan, Weld)
Broad-winged Hawk (*Douglas, Jefferson, Kit Carson, Larimer, Weld)
Laughing Gull (Weld)
Thayer's Gull (Larimer)
Lesser Black-backed Gull (Arapahoe)
GLAUCOUS-WINGED GULL (Larimer)
Caspian Tern (El Paso, Larimer, Jefferson, Mesa, Weld)
Lewis's Woodpecker (*Baca, Eagle)
ACORN WOODPECKER (Montrose)
Red-bellied Woodpecker (*Weld)
Williamson's Sapsucker (Mesa, Pueblo)
Ladder-backed Woodpecker (*Kit Carson)
American three-toed Woodpecker (Gunnison)
Least Flycatcher (*Baca)
Gray Flycatcher ( Boulder, Jefferson,Kit Carson)
Black Phoebe (Boulder, Fremont, Garfield)
Eastern Phoebe (Arapahoe, Boulder, Douglas, El Paso, Fremont, Pueblo)
White-eyed Vireo (Morgan, Weld)
Gray Vireo (Adams)
Chihuahuan Raven (*Baca)
Caroline Wren (Pueblo)
Lapland Longspur (Jackson, Weld)
Ovenbird (*Baca)
Northern Waterthrush (Pueblo, *Weld)
Tennessee Warbler (*Baca)
Blackpoll Warbler (*Baca, Jefferson)
Nashville Warbler (Boulder)
Northern Parula (Arapahoe, Pueblo)
Magnolia Warbler (*El Paso)
Black-throated Blue Warbler (*Kit Carson)
Palm Warbler (Crowley, Kiowa)
Yellow-throated Warbler (*Pueblo)
Grace's Warbler (Mesa)
Black-throated Gray Warbler (Boulder, Kiowa)
RED-FACED WARBLER (Montezuma)
Brewer's Sparrow (Boulder)
Black-throated Sparrow (Gunnison)
Grasshopper Sparrow (Douglas/Jefferson)
Fox Sparrow (Pitkin)
Dickcissel (Prowers)
Rusty Blackbird (Pueblo)
Baltimore Oriole (Bent)
ADAMS COUNTY:
---On April 30 at Rocky Mountain Arsenal NWR Denver Wildlife Drive, Yvonne Parrot reported Gray Vireo.
---On May 2 at Lowell Ponds, N side of I-76, Doug Kibbe reported Pectoral Sandpiper.
ARAPAHOE COUNTY:
--- On April 30 at Cherry Creek SP, Northern Parula was reported by Cindy Bouldin and several other birders. On May 3 at Cherry Creek SP, Joe Roller and Cynthia Madsen reported m Northern Parula. On May 4 at Cherry Creek SP at East Boat Ramp restroom, Mark Amershek, Crystal Wilson, Wendy Wibbens, and Tom Benhfield reported Northern Parula.
---On May 1 at Aurora Reservoir, David Suddjian and his DFO Field Trip reported 4 White-winged Scoters, 9 Sandering, and 2 Semipalmated Sandpipers. On May 1 at Aurora Reservoir, David Suddjian reported Lesser Black-backed Gull. On May 4 at Aurora Reservoir, Cheri Phillips reported 3 White-winged Scoters.
---On May 1 at Cherry Creek SP, Kay Rasmussen reported Glossy Ibis and 2 Solitary Sandpipers.
---On May 3 at Cherry Creek SP Doug Kibbe reported ad Lesser Black-backed Gull.
BACA COUNTY:
---On May 5 at Two Buttes SWA, Joey Kellner et al reported Lewis's Woodpecker, Least Flycatcher, Chihuahuan Raven (outside of canyon), Ovenbird, Tennessee Warbler, Blackpoll Warbler; and Nick Moore also reported 2 Greater Roadrunners.
BENT COUNTY:
---On May 2 at Hasty Campground below dam at John Martin, Duane Nelson reported m Baltimore Oriole.
---On May 5 at Van's Grove (CR JJ east of Fort Lyon), Joey Kellner et al reported LESSER NIGHTHAWK.
BOULDER COUNTY:
--- On April 30 at Boulder Creek at 75th St, Frankie Toan reported Black Phoebe. On May 3 at Boulder Creek at 75th St., Bill Kaempfer reported Black Phoebe. On May 4 at Boulder Creek at 75th St., Jane Baryames reported Black Phoebe.
---On April 30 at Walden Ponds, Peter Burke reported 3 Solitary Sandpipers.
--- On April 30, Jeff Parks reported that the Black-throated Gray Warbler was still present and a Green Heron was in ponds close to Foothills Hwy.
On April 30, Dave Leatherman reported Black-throated Gray Warbler on CU East Campus. On May 1 at CU East Campus, Mark Minner-Lee reported Black-throated Gray Warbler N of Discovery Dr. On May 1 at CU East Campus, John Malenich reported Black-throated Gray Warbler and Sandhill Crane along Boulder Creek. A Sandhill Crane has been reported several times this spring in Boulder, usually at
Walden/Sawhill. On May 3 at CU East Campus, John Malenich reported Nashville Warbler.
---On May 1 at Green Mountain Cemetery in Boulder, Bill Kaempfer and David Dowell reported Gray Flycatcher.
---On May 1 at Crane Hollow Road and ponds, David Dowell reported Black Phoebe.
---On May 3 at Axelson Open Space, Chuck Hundertmark heard 3 Sandhill Cranes.
---On May 3 at Walden Ponds, Jeff Parks reported 7 Semipalmated Sandpipers and Bill Kaempfer found Semipalmated Plover.
---On May 4 at N 63rd St and St Vrain Creek, Sue Riffe reported Black and Eastern Phoebe.
---On May 5 at Cottonwood Marsh, Peter Burke reported a fleeing Whimbrel.
---On May 5 at Lagerman Reservoir, Emil Yappert reported Sandhill Crane.
CROWLEY COUNTY:
---On May 2 at Ordway Town Reservoir, Roger Linfield reported Palm Warbler.
---On May 2 at Box Springs, Roger Linfield reported Stilt Sandpiper.
---On May 2 at Lake Meredith, Roger Linfield reported 5 Sanderling.
DELTA COUNTY:
---On May 4 at Fruitgrowers Reservoir, Andrea Robinsong reported Whimbrel.
DENVER COUNTY:
---On April 30 at First Creek at Denver OS, John Breitsch reported on his DFO Field Trip that they had 4 Solitary Sandpipers.
DOUGLAS COUNTY:
---On April 30 at Chatfiled Sp Marina Sandplit, Thomas Holub, Kevin DeBoer, Doug Kibbe, and Mackenzie Goldthwait reported 2 Semipalmated Sandpipers and Renee Casias reported 2 Sanderlings.
DOUGLAS/JEFFERSON COUNTIES:
---On April 30 at Chatfield SP, Bob Shade reported Grasshopper Sparrow.
---On May 4 on Hwy 67 between Sprucewood and South Platte River about 1 mile uphill from junction of Hwy 67 and Platte River Road, Chris Blakeslee reported Broad-winged Hawk.
EAGLE COUNTY:
---On April 30 at Spring Park Reservoir, Dick Filby reported around 10 Barrow's Goldeneyes.
---On May 2 at Spring Park Reservoir, Dick Filby reported 10 Barrow's Goldeneyes and 2 Lewis's Woodpeckers.
EL PASO COUNTY:
--- On May 1 at Ramah SWA, Caleb Hawley reported 3 Semipalmated Plovers, 14 Semipalmated Sandpipers, and Solitary Sandpiper; Alan Versaw reported 2 Semipalmated Plovers and 20 Semipalmated Sandpipers. On May 3 at Ramah SWA, Betty Glass and Diane Roberts reported Long-billed Curlew and 6 Semipalmated Sandpipers. On May 4 at Ramah SWA, David Tonnessen reported 2 Semipalmated Plovers, 6 Semipalmated Sandpipers, and Caspian Tern and
John Drummond reported 6 Whimbrel and Caspian Tern.
---On April 28 at Memorial Park and Prospect Lake, Dale Adams reported Chimney Swift.
---On April 30 at Chico Basin Ranch wooded areas, Renee Casias reported Eastern Phoebe. On May 3 at Chico Basin Ranch (fee Area), John Drummond reported Eastern Phoebe.
---On May 5 at Chico Basin Ranch (fee area), John Drummond reported a Magnolia Warbler which was banded.
FREMONT COUNTY:
---On April 30 at Florence River Park, SeEtta Moss reported Eastern and apparent Black Phoebe.
---On April 30 at river by Tunnel Driver Parking Area, SeEtta Moss reported pair of Eastern Phoebe.
GARFIELD COUNTY:
---On May 1 at Carbondale Fish Hatchery, Dick Filby reported 2 Black Phoebe.
GUNNISON COUNTY:
---On April 30, Tom Behnfield reported Black-throated Sparrow on Hwy 50 outside of Gunnison.
JACKSON COUNTY:
---On April 30 at Seymour Lake SWA, Sue Riffe reported Greater Sage-Grouse and 8 Semipalmated Sandpipers.
---On May 5 at Walden Reservoir, Jacob Drucker, Ben Legasse, Denise Bretting, and Georgia Doyle reported Glossy Ibis.
JEFFERSON COUNTY:
---On April 30 at Harriman Lake Park, Riley Morris reported Gray Flycatcher.
---On April 30 at Dinosaur Ridge Hawk Watch, Mike Ferandez reported 2 Broad-winged Hawks.
---On May 1 at Main Reservoir in Lakewood, Doug Kibbe and Kevin DeBoer reported Caspian Tern.
---On May 2 N of Blunn Reservoir off of Hwy 93, Christy Payne reported Long-billed Curlew.
---On May 2 at Arvada Blunn Reservoir, Lorraine Lanning reported 2 Semipalmated Plovers.
---On May 2 at Wheat Ridge Greenbelt/Prospect Park, Mary Keithler reported Broad-winged Hawk and 6 Chimney Swifts.
---On May 3 at Belmar Park, Frank Farrell reported Blackpoll Warbler.
---On May 4 at Dinosaur Ridge Hawk Watch, Joyce Commercon reported 2 Broad-winged Hawks.
KIOWA COUNTY:
---On May 2 at Neeskah Reservoir, Timo Mitzen reported Long-billed Curlew flyover, Palm Warbler, and Black-throated Gray Warbler.
---On May 4 at Neenoshe Reservoir, Dean Shoup, Glenn Walbek, and Loch Kilpatrick reported Snowy Plover, Piping Plover, 8 Whimbrel, 4 Long-billed Curlew, Dunlin, 2 Pectoral Sandpiper, 80 Semipalmated Sandpipers.
KIT CARSON COUNTY:
---On May 4 at Flager Reservoir SWA, Nick Moore reported Gray Flycatcher. On May 5 at Flagler SWA Austin Hess reported m Black-throated Blue Warbler on east side in Cottonwood Grove and 2 Ladder-backed Woodpeckers.
---On May 4 at Fairview Cemetery, Nick Moore reported Broad-winged Hawk.
---On May 4 on Longhorn Trail in Burlington, Nick Moore reported 2 Broad-winged Hawks.
LA PLATA COUNTY:
---On May 1 at Pastorius Reservoir, Susan Allerton reported Solitary Sandpiper. On May 2 at Pastorius Reservoir, Susan Allerton reported 7 Long-billed Curlew.
LARIMER COUNTY:
---On May 2 at north end of Boyd Lake SP, Josh Bruening reported 2 Long-billed Curlews, Whimbrel, 15 Semipalmated Sandpipers, and 3 Semipalmated Plovers. On May 2 at Boyd Lake, Derek Hill reported Glossy Ibis, Whimbrel, and Long-billed Curlew; Nick Komar and David Wade reported 5 Semipalmated Plover, Whimbrel, 3 Long-billed Curlew, 25 Semipalmated Sandpipers, Solitary Sandpiper, and Glossy Ibis. On May 3 at Boyd Lake, Nick Komar reported 2 Semipalmated Plovers, 13 Whimbrel, 2 Long-billed Curlew, 10 Semipalmaged Sandpipers, and Glossy Ibis. On May 4 at Boyd Lake, Andy Bankert, David Wade, and Nick Komar reported Glossy Ibis, Black-bellied Plover, 9 Semipalmated Plover, 4 Snadering, and 3 Semipalmated Sandpipers.
---On April 30 at Horseshoe Reservoir, Austin Hess and Nick Komar reported imm GLAUCOUS-WINGED GULL and Caspian Tern. On May 1 at Horseshoe Reservoir, David Wade reported 1-st cyc GLAUCOUS-WINGED GULL. On May 1 at Horsehoe Reservoir, Nick Komar reported GLAUCOUS-WINGED GULL and 2 Caspian Terns. On May 2 at Horseshoe Reservoir, Josh Bruening, David Wade, and Nick Komar reported 2 Caspian Tern. On May 3 at Horseshoe Reservoir, Nick Komar reported 2nd-cyc Thayer's Gull.
---On May 1 at Horsetooth Mountain Park, Arvind Panjabi reported Dusky Grouse. On May 4 at Horrsetooth Mountain Park, Arvind Panjabi reported Broad-winged Hawk.
---On May 1 at Running Deer and Cottonwood Hollow NA, David Wade reported 2 Broad-winged Hawks.
---On May 1 at Grandview Cemetery, Dave Leatherman reported 4 Broad-winged Hawks overhead.
LINCOLN COUNTY:
---On May 4 at Schaefer Reservoir (private view from road), Nick Moore reported Piping Plover, Whimbrel, and 15 Semipalmated Sandpipers.
LOGAN COUNTY:
---On April 30 at Rd Lion SWA, Austin Hess reported Glossy Ibis.
MESA COUNTY:
---On April 30 on O Road Pond, David Price reported 5 Caspian Tern.
---On April 30 at Green Heron Pond along Blue Heron Trail off of Redland Parkway in Grand Junction, Ron Lambeth reported Short-billed Dowitcher. On May 2 at Green Heron Pond, Mike Henwood and several other birders reported f Sanderling and Semipalmated Sandpiper. On May 3 Mike Henwood and Carol Ortenzio reported Sanderling at Green Heron Pond.
---On May 5 at Telephone Trail Area, Jacob Drucker reported 3 Williamson's Sapsuckers and 2 Grace's Warblers.
MONTEZUMA COUNTY:
---On May 4, R Christopher Vest had a RED-FACED WARBLER in his yard for about 30 minutes in the morning. He CANNOT allow birders in his yard because he runs a dog shelter. But birders are welcome to birder along the road. The location is south of Dolores where Rd 30 becomed Rd 29 north of Toten Reservoir.
MONTROSE COUNTY:
---On April 30 Missy Siders reported that she has seen ACORN WOODPECKERS at Cerise Park, Shane's Way in Montrose recently. These birds need to be documented since Acorn Woodpecker is not on
The Montrose County list.
MORGAN COUNTY:
---On April 30 at Jackson Lake SP, Chuck Hundertmark reported on his DFO Field Trip a White-eyed Vireo.
PITKIN COUNTY:
---On May 2 at Ruedi Reservoir inlet, Dick Filby reported Semipalmated Plover.
---On May 2 at Hallam Lake Nature Preserve in Aspen, Rebecca Weiss reported Fox Sparrow.
PROWERS COUNTY:
---On April 30 at Two Buttes SWA Division of Wildlife bunkhouse area, Trevon Mosley reported Dickcissel.
---On May 1 at Lamar Community College, John Reichhardt reported Solitary Sandpiper and Northern Cardinal.
PUEBLO COUNTY:
--- On May 1, David Tonnessen reported Yellow-throated Warbler at Mineral Palace Park. On May 5, Van Truan reported that the m Yellow-throated Warbler continues. It has been here since April 21.
---On April 30 at Chico Basin Ranch headquarters (fee area), Renee Casias reported Northern Waterthrush.
---On April 30 on I-25 north of Pueblo, Irene Fortune reported a disoriented Rusty Blackbird wandering around near gas station pumps.
---On May 1 on Arkansas River trail east of Pueblo Blvd, Brandon Percival reported singing Carolina Wren.
---On May 2 at Osprey Picnic Area below Pueblo Reservoir Dam, Brandon Percival reported singing m Northern Parula.
---On May 2 at Valco Ponds and Rock Canyon, Brandon Percival reported 2 Eastern Phoebe.
---On May 2 at Pueblo Reservoir, Brandon Percival reported basic plumaged Sanderling and Semipalmated Plover.
SAN MIGUEL COUNTY:
---On April 30 at Miramonte Reservoir, Eric Hynes reported Mexican Duck.
WELD COUNTY:
---On April 30 at Stewart's Pond, Amy Davis and many other birders reported Ruddy Turnstone, Caspian Tern, Mute Swan, Sanderling, Stilt Sandpiper, Short-billed Dowitcher, and 3 Semipalmated Sandpipers.
On May 1 at Stewart's Pond, Ira Sanders reported 5 Semipalmated Plover, Short-billed Dowitcher, 3 Solitary Sandpipers, and Caspian Tern; Kim Mauritz reported 2 Semipalmated Plovers, Ruddy Turnstone, 5 Stilt Sandpipers, Sanderling, 4 Semipalmated Sandpipers, Short-billed Dowitcher, and Caspian Tern.
On May 2 at Stewart's Pond, Tim Priehs and Rebecca Grieser reported Mute Swan and Caspian Tern. On May 2 at Stewart's Pond, Steve Mlodinow reported Mute Swan Glossy Ibis, 2 Semipalmated Plovers and Caspian Tern. On May 3 at Stewart's Pond, Norm Lewis reported Mute Swan and Pectoral Sandpiper and Nancy Davis reported Pectoral Sandpiper and Caspian Tern. On May 4 at Stewart's Pond, Gene Rutherfor and Sue Riffe reported Mute Swan and Solitary Sandpiper.
---On May 1 at Union Reservoir, Bill Fink and Jim Nachel reported Caspian Terns and Luke Pheneger reported Whimbrel.
---On April 30 at Union Reservoir on north Side near intersection with CR 3, Peter Gent reported 2 Whimbrel.
---On April 30 at Wetland on CR 46, Amy Davis reported Semipalmated Plover, Long-billed Curlew, Ruddy Turnstone, and 4 Semipalmated Sandpipers and Susan Wise and Luke Pheneger reported Short-billed Dowitcher. On May 3 at Wetland on CR 46, Jared Kidder reported Mute Swan and 2 Semipalmated Sandpipers and Nancy Davis reported Ruddy Turnstone flying towards Stewart's Pond.
---On April 30 at Eaton Cemetery, Joey Kellner et al reported White-eyed Vireo.
---On April 30 at Mountain Plover Spot, Austin Hess and Nick Komar reported 2 Mountain Plover and Upland Sandpiper.
---On April 30 near Greely on US 85, Joey Kellner et al reported Broad-winged Hawk.
---On May 1 on CR 111 N of CR 136, Brian Johnson reported 2 Sharp-tailed Grouse. On May 5 on CR 136 between CR 99 and Cr 105, Joshua Smith reported Sharp-tailed Grouse.
---On May 2 at Behrens Reservoir, Steve Mlodinow reported Ruddy Turnstone and 10 Sanderling. On May 3 at Behrens Reservoir, Norm Lewis reported Mute Swan and 2 flyover Sandhill Cranes.
---On May 2 at Firestone Gravel Pits (view from road), Steve Mlodinow reported Caspian Tern.
---On May 4 at Wood Lake, Sue Riffe reported 2 Caspian Terns.
---On May 5 at Crow Valley Campground, Bob Righter and Joshua Smith reported Red-bellied Woodpecker at east entance and Gene Rutherford reported Northern Waterthrush on west side along Creek.
Denver Field Ornithologists Field Trips:
The DFO Field Trip for Friday, May 5 will be to Cherry Creek State Park led by Bill Wuerthele (wuerthel AT ecentral.com; 303-333-2519). Meet at 0800 at west marina parking lot. State Parks Pass or day pass required.
Look for gulls, waterfowl, and a variety of birds. Will carpool to various stops and walk 1-2 miles. Bring binoculars, water, snacks, sunscreen, and bug repellent. Scopes are useful. Please register online or contact the leader.
The DFO Field Trip for Saturday, May 6 will be to Prospect Park (Wheat Ridge Greenbelt) led by Jackie King (jackie.king AT ccd.edu; 720-381-3314). From I-70 exit 267, take Kipling south about ¾ mile and turn right (west) on 44th Ave. Go one mile west. Look for the entrance to Prospect Park on your left (South). Meet at 0800 just inside the park in the lot right next to Prospect Lake.
This is a trip with easy walking and accessible for mobility impaired individuals. Bring water and a snack; Lunch optional. Register online or contact leader.
The DFO Field Trip for Sunday, May 7 will be to Apex Park-lower East Entrance led by John Breitsch (jbreitsch At Hotmail.com; 303-588-0552). This trip is full.
The DFO Field Trip for Sunday, May 7 will be to Denver City Park led by Patrick O'Driscoll (patodrisk AT gmail.com; 303-885-6955). Meet at parking strip on north side of Ferril Lake. From Colorado Blvd. turn left on 22nd Avenue and dirve west past Denver Museum of Nature & Science. Go left again at sign for Pavillion/Bandstand, just before Denver Zoo parking. Follow road down to parking area on left beneath trees, near Ferril Lake.
Late addition to DFO Big Month trip schedule. Thorough survey of the park with check-in on the cormorant, egret, and heron nesting colonies. Great variety likely. Bring water and snack. Register online or contact leader.
Good Birding,
Joyce Takamine
Boulder
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