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November 2011 Wildlife Inventory

November 2011 recorded 108 bird species, a respectable total for a month that often has low numbers of species. Four new species for the year were reported: Long-tailed Duck, Red-throated Loon, Pinyon Jay and Eastern Towhee. Other diving ducks of note, apart from the Long-tailed Duck or Oldsquaw as it once was called, included a White-winged Scoter, a Barrow's Goldeneye and several late sightings of Ruddy Duck. November is the peak month for viewing loons; three Pacific Loons and one Common Loon were also reported. However, we suspect that Common Loons, which should be our commonest loon, were under-reported. It is somewhat surprising that this was our first report of Pinyon Jay for the year. This is an irruptive species that can occasionally be found in large numbers, but is usually reported in small numbers in the mountains and foothills. Eastern Towhee was reported for the third time since the wildlife inventory began; previous reports were in 1999 and 2006. Eastern Towhee and Spotted Towhee were formerly sub-species of Rufous-sided Towhee.

Both Ross's Goose and Snow Goose were reported in more than one location. Two Tundra Swans were seen on Lagerman Reservoir, but did not linger. Grebes were reported in fair numbers with a Red-necked Grebe being a nice addition to our more normal species. American Pelicans lingered well into the month with the last sighting on the 24th. A Say's Phoebe on the 27th was a very late sighting for this flycatcher. Sedge Wren is a most unusual wren species for Boulder County, amazingly this was the second report of this species for this year. Only one bluebird species was reported in November and that was a group of eight Eastern Bluebirds. This is another species that is on the increase in the county; any winter bluebirds have to be considered carefully as they could be any of our three species: Eastern, Western or Mountain Bluebirds. Palm Warbler is an unusual species that is most frequently found in Boulder County in the winter. Three Brown-headed Cowbirds on the 27th were another very late sighting. Common Redpoll is always a good sighting. TOP


Birds
SPECIES DATE(S) AREA(S) NO. OBSERVER
Greater White-fronted Goose 19,20,27 7,20,25 3
Snow Goose 19,20,24,27,29 6,20 8
Ross's Goose 13,24,27,29 20,22 4
Cackling Goose 6,20,27,30 19,20,22,30 1745
Canada Goose Present
Tundra Swan 19 2
Gadwall a.m. 14,22,23,24,25,30 144
American Wigeon a.m. 23,24,25,30 176
Mallard Present
Northern Shoveler 5,19,24,26,30 6,14,23,24,30 111
Northern Pintail 5,6,27 22,23,24 41
Green-winged Teal 5,12,19,27 22,23,24 32
Canvasback a.m. 10,19,23 32
Redhead 5,12,23,24 6,23 35
Ring-necked Duck a.m. 23,30 140
Greater Scaup 24 10,19,50 7 SMi
Lesser Scaup 6,24,27,30 6,10,22,30 57
White-winged Scoter 10 1,10 10
Long-tailed Duck 25*,26 50 1 DLe*
Bufflehead a.m. 6,22,23,30,50 81
Common Goldeneye 6,19,23,24,27,30 6,10,23,25,30,50 910
Barrow's Goldeneye 25 50 1 DLe
Hooded Merganser 5,6,19,23,27 10,22,23,24 65
Common Merganser 24,27 6,24 8 BKa
Red-breasted Merganser 10,27 10,24,50 338
Ruddy Duck 6,19,27 10,19,23 5
Wild Turkey 27 34 30 TF
Red-throated Loon 8* 25 1 TF*
Pacific Loon 8,19,27 22,24,25 3 BKa
Common Loon 20 24 1 CNu
Pied-billed Grebe 5,12,19,30 23,30 13
Horned Grebe 6,10,27 10,22,50 114
Red-necked Grebe 6 22 1 SMi
Eared Grebe 6,19,20,24,27 10,22,23,50 161
Western Grebe 6,20,26 10,22,50 150 TF
Clark's Grebe 6,20,24,26 10,50 7 TF
American White Pelican 6,10,20,24 10 27
Great Blue Heron 5,12,19 23,24 2 WBC
Bald Eagle 27 19 1 TF
Northern Harrier 5 24 1 PMa
Sharp-shinned Hawk 19,28 37,? 2
Cooper's Hawk 19,21 11,23,30 3
Swainson's Hawk 17 25 1 PHa
Red-tailed Hawk 1,5,12,19,21,26 pl. 18
Harlan's Hawk 24,27 6,18,23 3
Ferruginous Hawk 9,24,27 23,25,32 4
Golden Eagle 5,27 23,32 3
American Kestrel 5,19,23,26 11,14,23,24,32 10
Prairie Falcon 19,25 23,30 2
Virginia Rail 6,24 22,26 2
American Coot Present
Wilson's Snipe 24 50 2 SMi
Bonaparte's Gull a.m. 10,19,50 108
Ring-billed Gull a.m. 4,6,22,23,24,25 694
California Gull 27 10 2 TF
Herring Gull 6,12,27 10,22 6
Thayer's Gull 6 10 1 TF
Rock Pigeon Present
Eurasian Collared-Dove 5,12,26,30 23,24,31,32 14
Mourning Dove 1,12 31 1 ABr
Belted Kingfisher 2,5,12,19,26,30 23,30 6
Downy Woodpecker 12,21,26 31 2
Hairy Woodpecker 4,21,28 31,37 2
Northern Flicker Present
Say's Phoebe 27 10 1 TF
Northern Shrike 5,24,27 23,24,38 3
Pinyon Jay 6* 33 2 NMo
Steller's Jay Present
Blue Jay 1,5,12,19,21,26,29 14,20,23,24,30,31 16
Black-billed Magpie Present
American Crow a.m. 20,23,24,30,31,37 35
Common Raven a.m. 20,23,24,30,37 17
Black-capped Chickadee Present
Mountain Chickadee Present
Bushtit 27 33 5 TF
Red-breasted Nuthatch 27 34 2 TF
White-breasted Nuthatch 4,10,12,25,26,27 23,30,34,36,37 16
Pygmy Nuthatch 25,27 34,36 20
Brown Creeper 25,26,27 30,33,34,36 8
Sedge Wren 17* 23 1 CNu
Marsh Wren 25,27 2,10,23 4
Eastern Bluebird 5 23 8 WBC
Townsend's Solitaire 4,17,25,26,27,30 30,34,36,37 9
American Robin Present
European Starling Present
American Pipit 6,12 22,23 2
Cedar Waxwing 27 33 1
Audubon's Warbler 27 23 1
Townsend's Warbler 6 33 1 NMo
Palm Warbler 13 30 1 PG,BKa
Eastern Towhee 17* 34 1 DJW*
American Tree Sparrow 5,6,9,19 7,22,23 20
Song Sparrow 1,3,4,5,12,19,26,30 23,30 7
Swamp Sparrow 4,27 10,23 3
White-throated Sparrow 11 30 1
White-crowned Sparrow 5 23 3 WBC
Dark-eyed Junco 1,5,12,17,19,23,25,26 14,23,24,30,36,37 17
Red-winged Blackbird Present
Western Meadowlark Present
Yellow-headed Blackbird 27 50 2 SMi
Brewer's Blackbird 25 50 3 DLe
Brown-headed Cowbird 27 50 3 SMi
Rosy Finch Species 19 38 30 DJW
House Finch Present
Red Crossbill 17 37 4 G&LM
Common Redpoll 28 (blank) 1
American Goldfinch 5,12,19,26 14,23,31 26
House Sparrow Present

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Mammals, Reptiles and Amphibians
SPECIES DATE(S) AREA(S) NO. OBSERVER
Cottontail Species 29 20 1 SJ
Black-tail Prairie Dog Present
Abert's Squirrel 5,14,23,25 36,37 5
Fox Squirrel Present
Coyote 20 37 1 G&LM
Black Bear 12 37 1 G&LM
American Elk 27 24 1 TF
Mule Deer Present
White-tailed Deer 21 31 6 SJ

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Contributors to the November 2011 Inventory:
Kitty Brigham, Alex & Gillian Brown, Todd Deininger, Ted Floyd, Peter Gent, Paula Hansley, Jack Harlan, Steve Jones, Bill Kaempfer, Nick Komar, Dave Leatherman, Petrea Mah, Carol McCasland, Steve Miodinow, Gene and Lynn Monroe, Nick Moore, Christian Nunes, Bill Schmoker, Scott Severs, Cara Stiles, Tom Thomson, David J Waltman, Wild Bird Center. TOP