Your Guide to Birding

in Weld County

County Map Weld County
Author(s):  Steven Mlodinow, Nathan Pieplow
County Seat: Greeley
Size: 3,990 square miles
Low Elevation: 4,296 ft. - Pawnee Creek on the Logan border
High Elevation: 6,380 ft. - Bison Butte
Best Birds: Brant (1993), American Black Duck (2002, 2015), Yellow-billed Loon (2006), Brown Pelican (1991), Fulvous Whistling-Duck (1990), Roseate Spoonbill (1913), Ancient Murrelet (1965), Gyrfalcon (1994), Bro
Checklist: Weld County Checklist
Introduction: If Colorado's third-largest county were to secede, it would become the third-smallest state. As if this were not distinction enough, Weld County is home to the Pawnee National Grasslands--a highlight destination of any birding trip to Colorado--and Crow Valley Campground, one of the state's best-known migrant traps. Its waterbird habitats run the gamut from tiny ponds to huge reservoirs and vast cattail marshes. Its checklist is long and distinguished. The only thing Weld County doesn't have, in fact, is mountains. But it commands fantastic views of them, and this is one of the factors accounting for its burgeoning human population.

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Birding Sites

Ault area
Habitat: Pond/Lake/Reservoir, Marsh, Park/Cemetery
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Banner Lakes State Wildlife Area
Habitat: Pond/Lake/Reservoir, Marsh, Hedgerow/Shelterbelt
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Beebe Draw
Habitat: Pond/Lake/Reservoir, Wet Meadow, Grassland/Prairie
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Black Hollow Reservoir
Habitat: Pond/Lake/Reservoir, Hedgerow/Shelterbelt
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Cornish Area
Habitat: Grassland/Prairie, Pond/Lake/Reservoir
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Crow Valley Campground
Habitat: Lowland Riparian, Hedgerow/Shelterbelt, Grassland/Prairie
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De France Reservoir and nearby ponds
Habitat: Pond/Lake/Reservoir, Marsh
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Drake Lake and nearby lakes
Habitat: Pond/Lake/Reservoir, Marsh
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Fort Lupton
Habitat: Lowland Riparian, Marsh, Pond, Stream
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Foster, Sanborn and Mulligan Reservoirs
Habitat: Pond/Lake/Reservoir, Marsh
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Frederick Reservoir and Recreation Area
Habitat: Pond/Lake/Reservoir, Hedgerow/Shelterbelt, Marsh
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Galeton
Habitat: Park/Cemetery, Urban/Suburban
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Greeley (except north end)
Habitat: Urban/Suburban, Pond/Lake/Reservoir, Park/Cemetery, Lowland Riparian, Stream
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Grover and the CR 124 pond
Habitat: Hedgerow/Shelterbelt, Park/Cemetery, Grassland/Prairie, Pond/Lake/Reservoir
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Hill Lake and nearby ponds
Habitat: Pond/Lake/Reservoir, Marsh
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Ireland Reservoir #5
Habitat: Pond/Lake/Reservoir, Marsh, Hedgerow/Shelterbelt
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Johnstown Reservoir
Habitat: Pond/Lake/Reservoir, Urban/Suburban
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Keenesburg
Habitat: Park/Cemetery, Urban/Suburban
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Kodak Watchable State Wildlife Area and Poudre River Trail (western section)
Habitat: Pond/Lake/Reservoir, Stream, Hedgerow/Shelterbelt, Lowland Riparian
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Koenig and Oklahoma Reservoirs
Habitat: Pond/Lake/Reservoir, Marsh
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Lake Thomas
Habitat: Pond/Lake/Reservoir, Marsh
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LaSalle
Habitat: Park/Cemetery, Urban/Suburban
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Lochbuie
Habitat: Pond/Lake/Reservoir, Marsh
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Loloff Reservoir
Habitat: Pond/Lake/Reservoir, Marsh
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Lower Latham Reservoir
Habitat: Pond/Lake/Reservoir, Wet Meadow, Marsh
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LUNA Reservoir
Habitat: Pond/Lake/Reservoir
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Mitani-Tokuyasu State Wildlife Area
Habitat: Lowland Riparian, Stream
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Painter Road (CR 386)
Habitat: Grassland/Prairie, Yucca
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Pawnee Buttes and Pawnee N. Grassland (E. section)
Habitat: Cliff Face, Grassland/Prairie, Yucca
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Pawnee National Grasslands (western section)
Habitat: Grassland/Prairie, Yucca, Pond/Lake/Reservoir
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Pierce area
Habitat: Pond/Lake/Reservoir, Park/Cemetery
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Poudre River Trail (71st Ave to 95th Ave)
Habitat: Pond/Lake/Reservoir, Lowland Riparian
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Poudre River Trail (Greeley section) and Greeley Gravel Pits
Habitat: Pond/Lake/Reservoir, Lowland Riparian, Stream
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Prospect Reservoir
Habitat: Pond/Lake/Reservoir, Marsh, Hedgerow/Shelterbelt
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Reservoirs North and East of Greeley
Habitat: Pond/Lake/Reservoir, Marsh, Hedgerow/Shelterbelt
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Rockwell and Thomas Reservoirs and Highland Lake
Habitat: Pond/Lake/Reservoir, Marsh, Park/Cemetery
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Saint Vrain State Park
Habitat: Pond/Lake/Reservoir, Marsh
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Sand Hills Reservoir
Habitat: Pond/Lake/Reservoir, Marsh
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Sandstone Ranch Community Park
Habitat: Lowland Riparian, Stream, Cliff Face, Hedgerow/Shelterbelt
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Seeley Reservoir SWA and nearby lakes
Habitat: Pond/Lake/Reservoir
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Severance area
Habitat: Pond/Lake/Reservoir, Marsh, Urban/Suburban
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Stoneham Pond
Habitat: Pond/Lake/Reservoir
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Union Reservoir
Habitat: Pond/Lake/Reservoir, Marsh
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Wattenburg ponds
Habitat: Pond/Lake/Reservoir, Marsh
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Windsor
Habitat: Pond/Lake/Reservoir, Urban/Suburban, Stream, Park/Cemetery, Lowland Riparian
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Windsor Reservoir
Habitat: Pond/Lake/Reservoir, Hedgerow/Shelterbelt
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Use the form on the home page to contact the editor with corrections or to volunteer to add a site.

eBird Seasonal Bar Chart

Latest Unusual Birds (eBird) in Weld County

 


CBRC Accepted Records from Weld County

SpeciesAccession No.Date(s)
Black-bellied Whistling-Duck8-91-147/11/1991
Fulvous Whistling-Duck8-90-1410/15/1990
Brant (Atlantic)8-92-913/15/1992 - 3/20/1992
Brant (Black)8-83-235/17/1980
Brant (Black)1999-1910/31/1993 - early November 1993
Brant (Black)8-95-172/8/1995
Brant (Black)2002-1611/30/2001
Brant (Black)2003-96 12/13/2003 - 2/24/2004
Pink-footed Goose2018-061 12/11/2018
Brant2014-012 01/15/2014
Cackling Goose (Aleutian)2013-12 11/25/2012
Cackling Goose (Ridgway's)2013-18 03/07/2013
Barnacle Goose2019-001 01/06/2019
Trumpeter Swan8-89-63/23/1989 - 5/13/1989
Tundra Swan2006-164 11/26/2006
Mexican Duck2009-17 4/15/2009
Mexican Duck2011-48 5/12/2011
Mexican Duck2012-20 3/4/2012
Mexican Duck2012-46 3/22/2012 - 4/11/2012
Mexican Duck2013-129 04/14/2013
Mexican Duck2013-179 06/30/2013
Mexican Duck2013-216 09/22/2013
Eurasian Wigeon8-85-214/18/1985
Eurasian Wigeon8-86-533/16/1986
Eurasian Wigeon8-87-63/23/1987
Eurasian Wigeon2013-256 03/20/2013
American Black DuckCU #229212/9/1923
American Black Duck8-92-409/6/1992
American Black Duck1998-221/30/1998
American Black Duck1998-231/25/1998
American Black Duck2002-10211/30/2002
American Black Duck2015-024 02/13/2015
American Black Duck2016-102 11/25/2016
American Black Duck2016-103 12/04/2016
Tufted Duck2011-177 12/4/2011
Long-tailed Duck2005-56 5/21/2005
Red-necked Grebe2-92-11910/23/1992
Red-necked Grebe2003-466/1/2003 - 6/3/2003
Eurasian Collared-Dove2000-673/19/2000
Common Ground Dove25-94-4112/22/1994
White-winged Dove25-75-1309/2/1975 - 9/6/1975
White-winged Dove25-77-375/3/1977
White-winged Dove25-95-506/17/1995
Black-billed Cuckoo2005-59 5/22/2005
Black-billed Cuckoo2010-85 6/15/2010
White-faced X Glossy Ibis2005-28 4/23/2005
White-faced X Glossy Ibis2011-12 5/30/2011
White-faced X Glossy Ibis2011-13 6/2/2011
Costa's Hummingbird2001-465/17/2001 - 5/18/2001
King Rail17-85-125/23/1985 - 5/31/1985
Common Gallinule2002-505/4/2002
Sandhill Crane2005-58 5/22/2005
Red-tailed Hawk (Krider's)2009-5 1/19/2009
Red-tailed Hawk (Krider's)2011-24 3/28/2011
Whooping Crane16-73-13211/3/1973
American Golden-Plover1999-34 09/13/1999
Mountain Plover2011-130 10/2/2011
Hudsonian Godwit19-86-315/24/1986 - 5/25/1986
Hudsonian Godwit19-87-235/5/1987
Hudsonian Godwit19-92-215/14/1992 - 5/18/1992
Hudsonian Godwit19-92-895/10/1992
Hudsonian Godwit19-94-255/24/1994
Hudsonian Godwit1998-465/27/1998
Hudsonian Godwit1999-364/22/1999
Hudsonian Godwit2008-30 4/16/2008 - 4/18/2008
Hudsonian Godwit2014-037 05/23/2013
Hudsonian Godwit2015-056 05/08/2015
Hudsonian Godwit2016-059 05/16/2016
Ruddy Turnstone18-82-195/15/1982
Ruddy Turnstone19-93-849/19/1993
Ruddy Turnstone1999-378/10/1999
Red Knot#267385/18/1953
Red Knot19-82-295/15/1982
RuffN-19-775/30/1977 - 6/1/1977
Buff-breasted Sandpiper2002-829/6/2002
Short-billed Dowitcher19-77-65/23/1976
Short-billed Dowitcher19-93-838/17/1993
Short-billed Dowitcher1997-315/17/1997
Short-billed Dowitcher1999-408/25/1998
Short-billed Dowitcher1999-425/20/1999
Short-billed Dowitcher1999-439/3/1999
Short-billed Dowitcher1999-449/5/1999
Red Phalarope2002-748/25/2002
Red Phalarope2007-40 6/2/2007 - 6/7/2007
Pomarine Jaeger22-13-12410/6/1973
Pomarine Jaeger2001-199 11/2/2001
Parasitic Jaeger22-77-598/13/1977 - 8/14/1977
Parasitic Jaeger1999-5010/18/1999
Parasitic Jaeger2004-45 9/5/2004
Parasitic Jaeger2004-59 10/31/2004
Long-tailed Jaeger#2015310/18/1902
Long-tailed Jaeger22-93-10210/16/1993
Long-tailed Jaeger22-95-359/4/1995 - 9/14/1995
Ancient Murrelet#3382710/14/1965
Black-legged Kittiwake23-76-11811/13/1976 - 11/27/1976
Black-legged Kittiwake23-96-3111/28/1996
Black-legged Kittiwake2002-11212/6/2002
Black-legged Kittiwake2010-158 12/4/2010
Black-legged Kittiwake2010-159 12/4/2010 - 12/18/2010
Black-legged Kittiwake2011-165/26/2011
Black-legged Kittiwake2011-33 5/5/2011
Black-headed Gull23-90-224/14/1990
Little GullN-23-4511/2/1974 - 11/10/1974
Little Gull23-76-625/22/1976 - 5/27/1976
Little Gull23-77-55/15/1976
Little Gull23-77-606/7/1976
Little Gull23-96-2310/6/1988
Little Gull23-94-3111/3/1994
Little Gull23-95-399/24/1995
Little Gull1999-5310/5/1999
Little Gull2011-174 12/1/2011 - 12/3/2011
Little Gull2012-200 12/02/2012
Laughing Gull23-74-595/19/1974
Laughing Gull23-76-411/1/1975
Laughing Gull23-76-11210/23/1976
Laughing Gull1998-548/23/1998
Laughing Gull2002-455/8/2002 - 5/17/2002
Laughing Gull2006-139 10/2/2006
Laughing Gull2013-188 08/03/2013
Jaeger sp.22-77-659/4/1977
Jaeger sp.22-83-612/5/1982 - 12/6/1982
Jaeger sp.22-84-1110/15/1983
Mew Gull23-81-74/28/1981
Mew Gull23-92-54/28/1991
Mew Gull1997-373/8/1997
Mew Gull1998-6012/5/1998
Mew Gull1999-562/27/1999
Mew Gull1999-5711/18/1999 - 11/20/1999
Mew Gull1999-5912/31/1999
Mew Gull2002-15711/2/2002
Iceland Gull2002-75 4/18/2000
Iceland Gull2007-15 4/1/2007-4/29/2007
Iceland Gull2007-16 4/1/2007
Iceland Gull2010-13 3/27/2010
Iceland Gull2011-160 11/13/2011
Iceland Gull2012-40 4/1/2012
Iceland Gull2013-124 03/31/2013
Iceland Gull2013-126 04/03/2013
Iceland Gull2014-036 02/19/2014
Lesser Black-backed Gull1999-622/10/1999
Lesser Black-backed Gull2001-11511/15/2001
Glaucous-winged Gull2013-267 11/13/2013
Glaucous-winged Gull2015-027 03/11/2015
Great Black-backed Gull23-95-463/8/1995
Great Black-backed Gull2004-133 11/25/2004
Arctic Tern#390809/16/1912
Arctic Tern23-80-29/11/1979 - 9/12/1979
Arctic Tern1997-469/20/1997
Arctic Tern1999-7810/5/1999
Arctic Tern2000-16810/6/2000 - 10/7/2000
Arctic Tern2003-1269/13/2003
Arctic Tern2011-59 5/24/2011 - 5/26/2011
Red-throated Loon1-87-10611/4/1984
Red-throated Loon2007-89 11/3/2007
Red-throated Loon2007-97 11/17/2007
Red-throated Loon2009-102 10/30/2009 - 11/14/2009
Yellow-billed Loon1-92-5011/9/1991
Neotropic Cormorant4-94-46/24/1994
Neotropic Cormorant2012-48 4/19/2012
Neotropic Cormorant2013-130 04/14/2013
Neotropic Cormorant2013-159 05/15/2013
Neotropic Cormorant2015-037 04/06/2015
Neotropic Cormorant2016-057 04/18/2016
Brown Pelican3-91-56/23/1991
Brown Pelican2005-65 6/10/2005 - 6/19/2005
Little Blue Heron5-74-979/2/1974
Little Blue Heron5-76-565/31/1976
Little Blue Heron5-77-384/26/1977
Little Blue Heron1999-128/15/1999
Little Blue Heron1999-1838/5/1999
Little Blue Heron2000-105/19/2000
Little Blue Heron2009-36 5/12/2009
Tricolored Heron5-77-395/22/1977
Tricolored Heron5-85-469/8/1985
Tricolored Heron1998-75/16/1998 - 5/18/1998
Tricolored Heron2010-78 5/5/2010 - 5/6/2010
Yellow-crowned Night-Heron5-92-138/19/1992
Yellow-crowned Night-Heron2001-718/10/2001 - 8/23/2001
Yellow-crowned Night-Heron2008-155 7/18/2005
Yellow-crowned Night-Heron2011-87 6/10/2011 - 6/12/2011
Yellow-crowned Night-Heron2016-070 09/12/2016
Glossy Ibis7-88-285/25/1988 - 5/28/1988
Glossy Ibis7-89-55/7/1989
Glossy Ibis1999-175/15/1999
Glossy Ibis2000-15 
Glossy Ibis2001-1575/1/2001
Glossy Ibis2002-1965/28/2003
Glossy Ibis2005-29 4/23/2005
Glossy Ibis2009-33 5/12/2009
Glossy Ibis2010-75 4/4/2010
Glossy Ibis2011-62 5/26/2011
Glossy Ibis2011-78 6/2/2011
Glossy Ibis2011-88 6/11/2011
Glossy Ibis2011-91 6/18/2011
Roseate Spoonbill#73889/1/1913
Mississippi Kite2014-165 07/21/2012
Red-shouldered Hawk10-77-739/2/1977
Red-shouldered Hawk10-93-554/9/1993
Red-shouldered Hawk2010-71/11/2010 - 1/20/2010
Snowy Owl#70041/14/1918
Snowy Owl28-93-283/16/1993
Snowy Owl2003-1503/3/1998
Snowy Owl2000-802/4/2000 - 2/6/2000
Snowy Owl2002-6 2/17/2002
Snowy Owl2012-14 2/14/2012
Snowy Owl2012-34 3/25/2012
Red-bellied Woodpecker2006-44 5/1/2006 - 5/6/2006
Red-bellied Woodpecker2011-198 10/01/2011
Merlin (Black)2013-199 04/23/2013
Crested Caracara2017-017 04/15/2017
Gyrfalcon12-93-813/16/1993
Gyrfalcon12-95-2212/8/1995
Eastern Wood-Pewee2014-057 05/29/2014
Eastern Wood-Pewee2014-136 09/05/2014
Alder Flycatcher2001-191 6/4/2001
Alder Flycatcher2002-1716/4/2001
Alder Flycatcher2007-86 6/1/2007
Alder Flycatcher2008-79 5/28/2008
Alder Flycatcher2010-30 5/19/2010
Alder Flycatcher2011-111 8/28/2011
Alder Flycatcher2015-074 05/27/2015
Gray Flycatcher2011-195 08/20/2011
Vermilion Flycatcher34-73-524/29/1973
Vermilion Flycatcher34-86-259/25/1985
Vermilion Flycatcher2009-18 4/15/2009
Brown-crested Flycatcher2007-76 10/29/2007
Scissor-tailed Flycatcher1999-1008/8/1999
Scissor-tailed Flycatcher1999-996/18/1999
Scissor-tailed Flycatcher2005-47 5/14/2005
Scissor-tailed Flycatcher2009-39 5/14/2009
Loggerhead Shrike2014-058 02/06/2014
White-eyed Vireo51-92-205/15/1992 - 5/20/1992
White-eyed Vireo51-92-885/14/1992
White-eyed Vireo2000-925/20/2000
Yellow-throated Vireo51-80-67/3/1979
Yellow-throated Vireo51-90-456/20/1990
Yellow-throated Vireo51-92-645/21/1992
Blue-headed Vireo2003-114 9/1/2003
Philadelphia Vireo51-84-399/1/1984
Philadelphia Vireo2002-1255/19/2002
Philadelphia Vireo2008-108 9/19/2008
Purple Martin2011-63 5/26/2011
Sedge Wren42-75-1395/25/1969
Sedge Wren2016-014 10/21/2015
Swainson's Thrush (Russet-backed)2013-160 05/28/2013
Gray-cheeked Thrush44-76-725/16/1976
Gray-cheeked Thrush44-92-685/19/1992
Gray-cheeked Thrush44-93-795/17/1993
Gray-cheeked Thrush44-94-505/25/1994
Gray-cheeked Thrush1997-665/19/1997
Gray-cheeked Thrush1998-1075/19/1998
Gray-cheeked Thrush2002-1265/12/2002
Gray-cheeked Thrush2005-50 5/27/2005
Gray-cheeked Thrush2006-49 5/12/2006
Gray-cheeked Thrush2006-53 5/14/2006
Gray-cheeked Thrush2006-63 5/16/2006
Gray-cheeked Thrush2011-189 5/14/2006
Gray-cheeked Thrush2012-59 4/29/2012
Hermit Thrush2011-72 4/16/2011
Wood Thrush2006-97 6/3/2006
Varied Thrush2001-9010/16/2001
Varied Thrush2006-173 12/18/2006
Varied Thrush2008-111 10/1/2008 - 10/2/2008
Varied Thrush2008-24 3/19/2008
Curve-billed Thrasher2002-591/5/2002
Sprague's Pipit2015-131 10/14/2015
Gray-crowned Rosy-Finch2017-077 01/01/2018
Purple Finch2014-175 12/12/2014
Common Redpoll2013-85 12/13/2012
Field Sparrow2009-35 5/12/2009
Field Sparrow2011-194 05/05/2011
Golden-crowned Sparrow1999-16110/1/1999
Golden-crowned Sparrow2010-173 10/15/2010
Baird's Sparrow#601010/14/1910
Eastern Towhee2006-85 5/23/2006
Eastern Towhee2013-272 11/17/2013
Eastern Meadowlark54-88-426/12/1988 - 7/6/1988
Eastern Meadowlark2014-157 09/29/2014
Prothonotary Warbler1998-1295/26/1998
Lucy's Warbler2015-140 05/10/2015
Connecticut Warbler52-79-165/19/1979
Mourning Warbler52-94-815/26/1994
Mourning Warbler2006-78 5/21/2006
Mourning Warbler2014-091 05/21/2014
Kentucky Warbler52-92-655/2/1992
Kentucky Warbler1997-1005/30/1997
Bay-breasted Warbler52-74-645/19/1974
Bay-breasted Warbler1998-1289/5/1998
Bay-breasted Warbler2000-1325/24/2000
Bay-breasted Warbler2008-110 10/1/2008
Blackburnian Warbler52-88-139/6/1987
Blackburnian Warbler1997-855/16/1997
Blackburnian Warbler1998-1225/26/1998
Blackburnian Warbler2000-1265/20/2000
Pine Warbler52-75-1349/12/1975
Pine Warbler52-86-519/7/1986
Pine Warbler2003-105 12/21/2003 - 12/31/2003
Yellow-throated Warbler2010-71 4/8/2010-4/10/2010
Prairie Warbler52-75-1446/2/1975
Prairie Warbler2002-539/1/2002
Prairie Warbler2010-84 6/8/2010
Grace's Warbler2008-40 5/1/2008
Canada Warbler52-73-176/18/1967
Canada Warbler1998-1425/21/1998
Canada Warbler2002-769/6/2002
Canada Warbler2006-115 8/26/2006
Canada Warbler2014-161 09/13/2014
Painted Redstart2014-046 05/01/2014
Scarlet Tanager2004-121 8/11/2004