Date: March 7, 2019
Compiler: Allison Hilf, ahilf AT me.com
Phone: (303) 888-5110
E-mail: RBA AT cobirds.org

This is the Colorado Rare Bird Alert for Thursday, March 7, sponsored by Denver 
Field Ornithologists.
 
Observers have been diligent in reporting sightings and updates on CoBirds. 
Thanks!
CAPITAL LETTERS are used for very rare species, as listed by the Colorado Bird 
Records Committee.
(*) indicates new information on this species.
 
Rare, out of place and out of season species include:
 
Trumpeter Swan (Mesa, *Pueblo)
Tundra Swan (Prowers)
White-winged Scoter (Weld)
Long-tailed Duck (*Fremont, Larimer, *Weld)
Glaucous-winged Gull (*Pueblo)
Yellow-bellied Sapsucker (Denver)
Winter Wren (Jefferson)
Varied Thrush (*Boulder)
Black Rosy-Finch (El Paso, *Jefferson)
Mixed Rosy-Finch flock (El Paso)
Field Sparrow (El Paso)
Fox Sparrow (Red) (*Jefferson)
Golden-crowned Sparrow (El Paso)
Northern Cardinal (Larimer)
Rusty Blackbird (*Denver)
 
Gull species: several winter/early spring gulls are being seen, primarily in 
Pueblo, Larimer, Arapahoe and Adams Counties (e.g. Iceland Gull (Thayer’s), 
Glaucous Gull, Bonaparte’s Gull California Gull, Herring Gull, Lesser 
Black-backed Gull,  and Great Black-backed Gull). 
For more information on these Gull species, as well as other birds not on RBA 
list, please check cobirds.org, scroll down to the very bottom “Bird Trax” and 
click on “sightings”.  It will list ALL birds reported on e-bird for the day.
 
BOULDER COUNTY:
—On March 6 a Varied Thrush was reported on Bosque Ct in Boulder. First report 
on Jan 23  by Ernest Crvich.

DENVER COUNTY:
—On March 6 (4) Rusty Blackbirds were reported at First Creek at Denver Open 
Space.  First report in January.
—On March 2 a Yellow-bellied Sapsucker was reported at Rocky Mountain Lake 
Park.  First report in January.
 
EL PASO COUNTY:
—On March 5 a Golden-crowned Sparrow was reported at Cheyenne Mountain SP near 
the Limekiln trailhead shelter area.  First reported on Feb 4 by Tyler Stewart.
—On March 3 the overwintering Field Sparrow continues at Red Rock Canyon Open 
Space.
—On March 2 the Rosy-Finch flock including Gray-crowned and Black continues at 
Rainbow Gulch Trail, Rampart Range Reservoir.  First report Dec 2018.

FREMONT COUNTY:
— On February 6 (2) Long-tailed Ducks were reported at Blue Heron Ponds on Hwy. 
115 by Rich Miller.

JEFFERSON COUNTY:
—On March 6 the overwintering Fox Sparrow (Red) continues at Red Rock Trading 
Post.
—On March 5 the overwintering Winter Wren continues at the Bear Creek 
Greenbelt, S Kipling Parkway to S Wadsworth Blvd. First report in January.
—There has been a mixed flock of Rosy Finches in Golden visiting the feeders at 
the home of Kirsten Witherell.  If you'd like to try and see them please text 
her at 720-372-0833.  If she is not home you are welcome to go around the back 
gate.  Be sure you have the correct address- 19540 W 55th Place, Golden (inside 
Table Rock Community).  The birds have been seen most days this winter, most 
prominent on colder days.  Approx. 35 Black Rosy-Finches reported on Feb 6.

LARIMER COUNTY:
—On February 28 a Long-tailed Duck was reported at Fossil Creek Reservoir & 
Regional Open Space.  First report on Feb 16 by David Farmer.
—There has been a (f) Northern Cardinal visiting the feeders at the home of 
Steve Martin SW of Wellington since July. Email for current status and 
directions: falconridge AT cowisp.net. Last reported on March 1.

MESA COUNTY:
—On March 5 a Trumpeter Swan was reported at Highline Lake State Park.  First 
report on Feb 9 by Glenn Pearson.

PROWERS COUNTY:
—On March 1 a Tundra Swan was reported in Lamar at North Gateway Park by Tony 
Leukering.

PUEBLO COUNTY:
—On March 6 a Glaucous-winged Gull was reported at Pueblo Reservoir--South 
Marina area. First report on Feb 1 by  David Tonnesson.
—On March 6 (2) Trumpeter Swans were reported at Valco Ponds SWA.  There have 
been 1-2 Swans reported over the past few weeks, moving between locations at 
Pueblo Reservoir, the Nature and Raptor Center of Pueblo, Rock Canyon Rd. in 
Pueblo, Mosquito Alley, and Valco Ponds SWA.
—Note, a Great Black-backed Gull, “Murray” is often reported at Pueblo 
Reservoir, where it has wintered for many years.

WELD COUNTY:
—On March 6 a Long-tailed Duck was reported at Firestone Gravel Pit (view from 
road).  First report on Feb 26 by Steve Mlodinow.
—On March 5 a (f)White-winged Scoter was reported at St. Vrain State Park in 
the pond just south and west of entrance station by Steve Mlodinow.
 
Upcoming DFO Field Trips...trip details on dfobirds.org

Belmar Historic Park
Saturday, March 9
8:00 AM - 11:00 AM
Chuck Hundertmark (Email: chundertmark8 AT gmail.com;303-604-0531)

Cherry Creek SP Wetlands Loop (Arapahoe County)
Sunday, March 10
9:00 AM - 12:00 PM
Karen von Saltza (Email: kvonsaltza AT yahoo.com; 303-941-4881)

DFO Colonial Waterbirds Project
Sunday, March 10
9:00 AM - 10:30 AM
Patrick O'Driscoll (Email: patodrisk AT gmail.com; 303-885-6955)

Northeastern Colorado 
Monday, March 11
5:00 AM - 7:00 PM
David Suddjian (Email: dsuddjian AT gmail.com; 831-713-8659)

Good Birding,
Allison Hilf
Aurora, CO

Sent from my iPhone

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