Cobirds:
Here's what I saw for Saturday and Sunday within the
Boulder County limits. Thanks to the many people reporting the
rarities.
GC = Gregory Canyon area
CU = University of Colorado Research Ctr and Boulder Creek
BC = Boulder Creek near CU campus
WS = Walden Sawhills
BR = Baseline Reservoir
TW = Twin Lakes \ Gunbarrel
SC = Skunk Creek \ Skunk Canyon
EGF - Evin G Fine Park and Boulder Creek upstream
TL = Teller Lake number 5
111th St = 111th St Lafayette
OS - City of Boulder open space headquarters, Cherryvale Rd.
RED THROATED LOON - BR - as reported by Peter Gent
Common loon - BR
Horned grebe - BR
Pied billed grebe - WS
Western grebe - BR
American white pelican - WS
Double crested comorant - WS, BR
Great egret - TL
Great blue heron - TL, WS, TW, BC,
Canada goose - WS, TW, TL - goslings all over the place
Mallard - GC (under the picnic table!), CU, BC, WS, TL
Gadwall - WS, TL
Blue winged teal - WS
Cinnamon teal - WS
Turkey vulture - GC, CU, TW, SC
Osprey - CU, WS
Cooper's hawk - EGF
Red tailed hawk - GC, CU, 111th st,
American kestrel - 111th St, TL
Sora - at the marsh off Tantra Drive
American coot - SW
Killdeer - SW
American avocet - TL
Spotted sandpiper - SW
Wilson's snipe - SW, OS
Rock pigeon - OS
Mourning dove - CU, BC, WS, TW, TL, OS
Eurasian collared dove - CU, BC, WS, TW, (anyone remember when this
was a rare bird?)
WHITE WINGED DOVE - TW (at least two)
Great horned owl - TW
CHIMNEY SWIFT - CU (at least 4)
Broad tailed hummingbird - GC, CU, BC, TW, SC (high concentrations at
Skunk Creek)
Belted kingfisher - SW, CU,
Northern flicker - GC, CU, BC, TW, SC, TL, EGF
Downy woodpecker - CU, BC, TW
Dusky flycatcher - GC (by song)
Empidonax ssp: - GC, CU, BC, TW, SC, EGF - lots at Skunk Creek
Say's phoebe - CU, SW
Western kingbird - SC
CASSIN'S KINGBIRD - SW (only 1 - near the work depot)
Plumbeous vireo - GC
Warbling vireo - CU, WS, TW, SC, EGF,
Stellars jay - GC, SC
Scrub jay - SC
Black billed magpie - GC, CU, BC, WS, TW, SC, TL
American crow - GC, CU, BC, TW
Common raven - GC, BC
Northern rough winged swallow - SW, CU
Cliff swallow - SW, CU, TL
Barn swallow - SW, CU, BC, BR, SC, EGF, TL - large numbers at Teller
Lake and at almost every stoplight in Boulder;
Violet green swallow - SW, CU, TL
Black capped chickadee - present
White breasted nuthatch - GC
Pygmy nuthatch - GC
House wren - present
American dipper - EGF - 2
Ruby crowned kinglet - BC
Blue gray gnatcather - GC, WS, SC
American robin - present
Gray catbird - GC, SC
European starling - present
Virginia's warbler - GC
Audubon's warbler - CU, WS
BLACK THROATED GRAY WARBLER - CU - 1 male singing by the ponds
Yellow warbler - GC, CU, BC, WS, TL, EGF - high concentrations up
Boulder Canyon from Ebin G. Fine park
Common yellowthroat - SW
NORTHERN WATERTHRUSH - CU - singing vigorously by one of the small
ponds
Yellow breasted chat - GC, SC
Western tanager - GC, CU (up higher in Gregory Canyon, and along
Boulder Creek)
Green tailed towhee - SC - at least four singing along Skunk Creek
Trail
Spotted towhee - GC, SC
Chipping sparrow - only one found at low altitude in Louisville
Song sparrow - CU, BC, TL, TW, EGF, WS
Savanah sparrow - OS - back in good numbers at Cherryvale headquarters
Vesper sparrow - 111th St.
Black headed grosbeak - GC, SC, EGG
Lazuli bunting - GC, SC
Bobolink - OS - at least three singing along Cherryvale Road
Western meadowlark - GC, CU, WS, OS
Yellow headed blackbird - WS - numbers are increasing
Red headed blackbird - present
Common grackle - present
Great tailed grackle - WS - still 2 present at Cottonwood Marsh
Brown headed cowbird - present
Bullock's oriole - WS, GC, SC
House finch - present
American goldfinch - present
House sparrow - present
Yeeesh - is that enough for you? I did not find the Blackburnian
warbler, but Dan Zmolek did photograph it at about 2 pm on Saturday,
after Peter Gent reported it.
Lots of stuff is blooming in the foothills - I'll save that for
later.
Best of birding luck - John Tumasonis (John T), Louisville CO
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