Compiler: Joe Roller
Date: March 6, 2014
This is the Colorado Rare Bird Alert for Thursday, March 6, 2014, updated at 0725, sponsored by the Denver Field Ornithologists and the Rocky Mountain Bird Observatory. If you are phoning in a message, you can skip the recording by pressing the star key (*) on your phone at any time. Please leave your name, phone number, detailed directions including county, and dates for each sighting. It would be helpful if you would spell your last name. For a mega-rarity, just call me directly at
303 204-0828.
Highlight species include (* indicates new information on this species in this report).
Greater White-fronted Goose (Denver)
BRANT (Douglas)
TRUMPETER or TUNDRA SWAN (Morgan)
TUNDRA SWAN (Boulder)
Long-tailed Duck (Denver)
Barrow’s Goldeneye (Jefferson)
Short-eared Owl (Weld*)
MEW GULL (Arapahoe)
Lesser Black-backed Gull (Arapahoe, Denver, Weld)
Thayer's Gull (Arapahoe, Denver, Jefferson, Weld)
ICELAND GULL (Weld)
GLAUCOUS-WINGED GULL (Arapahoe)
Glaucous Gull (Arapahoe, Jefferson, Pueblo)
GREAT BLACK-BACKED GULL (Weld)
Winter Wren (El Paso)
GOLDEN-CROWNED SPARROW (Jefferson)
Lapland Longspur (Weld)
Rusty Blackbird (Boulder)
ARAPAHOE COUNTY:
--Dowell reports these gulls at Aurora Reservoir on February 26: MEW GULL, (ad)., Lesser Black-backed Gulls, (2 ad. & 1 3rd. yr.), Thayer’s Gull, (2 juv., 1 or 2 ad.), GLAUCOUS-WINGED GULL, (2nd. winter), Glaucous Gull, (1 ad., 2 immature).
--On March 3, Walbek reports a similar assortment of gulls from Aurora Res, best seen from the SW corner.
BOULDER COUNTY:
--On February 1, Wilberding reported a TUNDRA SWAN at Cottonwood Marsh; the swan was seen there again on February 23 by Breitsch, and may still be around.
--On February 28, Moore reports 3 Rusty Blackbirds at Walden Ponds. They were in a marsh
north of a trail at the southwest-most lake (the one with Osprey platforms) in Sawhill Ponds.
DENVER COUNTY:
--On February 27, T. Jones reports seeing these gulls on Marston Reservoir: Two, ad. Lesser Black-backed Gulls were on the ice. One was a very dark backed[almost black] colored bird. The other ad. Lesser Black-backed Gull had more of the typical dark gray colored back. A first cycle Thayer’s Gull was also present.