Your Guide to Birding

in Arapahoe County

County Map Arapahoe County
Author(s):  Jared Del Rosso, Nathan Pieplow, Andrew Spencer, Steve Stachowiak
County Seat: Littleton
Size: 800 square miles
Low Elevation: 4,743 ft. - Beaver Creek on the Washington border
High Elevation: 6,210 ft. - Smoky Hill Ridge
Best Birds: Arctic Loon (2002), Wood Stork (1902), Black-headed Gull (1988)
Checklist: Arapahoe County Checklist
Introduction: Like Adams County, its neighbor to the north, Arapahoe is a long, long rectangle whose western quarter is urban and whose eastern three quarters are nearly empty. Like in Adams, the undisputed crown jewel of birding sites in Arapahoe is one state park built around a large reservoir--in this case, Cherry Creek Reservoir.

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Birding Sites

Aurora Reservoir
Habitat: Reservoir, Lowland Riparian, Grassland/Prairie
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Bowles Grove Park
Habitat: Pond, Park, Lowland Riparian
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Centennial Park
Habitat: Pond, Park
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Cherry Creek State Park
Habitat: Reservoir, Lowland Riparian, Grassland/Prairie
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Coal Creek Arena
Habitat: Lowland Riparian, Stream
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Deer Trail
Habitat: Urban/Suburban
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High Line Canal (Arapahoe County portion)
Habitat: Lowland Riparian, Pond
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Ketring Pond
Habitat: Pond, Park
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McLellen Reservoir
Habitat: Reservoir
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Quincy Reservoir
Habitat: Reservoir, Lowland Riparian
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South Platte Park
Habitat: Lowland Riparian, Pond, Marsh
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Utah Park
Habitat: Park, Pond, Marsh, Lowland Riparian
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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 Arapahoe County


CBRC Accepted Records from Arapahoe County

SpeciesAccession No.Date(s)
Brant (Atlantic)8-81-5810/24/1981 - 10/31/1981
Brant (Black)1999-2011/17/1999 - 11/20/1999
Brant (Black)2005-14 2/25/2005 - 4/3/2005
Brant (Black)2006-186 1/1/2006
Brant (Black)2017-004 01/15/2017
Barnacle Goose2018-029 01/09/2018
Cackling Goose2002-172 1/13/2002
Cackling Goose (Ridgway's)2015-011 23 Jan 2015
Eurasian Wigeon2012-17 1/19/1994
Black Scoter8-75-15411/9/1975 - 11/16/1975
Black Scoter8-75-16111/15/1975 - 11/22/1975
Black Scoter8-76-10010/12/1976
Black Scoter8-78-110/28/1977 - 10/30/1977
Black Scoter8-93-9911/16/1993
Wild Turkey2015-021 06/25/2011
Red-necked Grebe2-95-512/20/1995
Red-necked Grebe1998-410/31/1998
Band-tailed Pigeon2012-162 5/26/2012
White-winged Dove1998-736/24/1998
Piping Plover2019-021 8 May 2019
Red Knot19-93-298/8/1993
Buff-breasted Sandpiper19-74-1019/6/1974
Buff-breasted Sandpiper19-77-699/7/1977
Buff-breasted Sandpiper2009-80 8/30/2009
Short-billed Dowitcher19-94-289/14/1994
Short-billed Dowitcher2011-42 5/1/2011
Red Phalarope2007-58 9/11/2007
Red Phalarope2007-92 11/6/2007
Jaeger sp.22-73-14312/17/1973
Jaeger sp.22-75-1168/15/1975
Jaeger sp.22-86-419/26/1985
Pomarine Jaeger#337989/30/1963
Pomarine Jaeger22-75-14710/5/1975
Pomarine Jaeger22-86-111/23/1985
Pomarine Jaeger22-96-1811/19/1996
Pomarine Jaeger1999-4911/15/1999
Pomarine Jaeger2005-93 9/14/2005
Pomarine Jaeger2006-121 9/5/2006
Pomarine Jaeger2006-132 9/24/2006 - 10/5/2006
Parasitic Jaeger2016-094 09/15/2016
Long-tailed Jaeger22-73-1159/20/1973
Long-tailed Jaeger2008-103 9/7/2008 - 9/24/2008
Long-tailed Jaeger2010-94 9/6/2010
Long-tailed Jaeger2011-115 9/10/2011 - 9/11/2011
Black-legged Kittiwake23-83-7012/5/1982
Black-legged Kittiwake23-85-311/10/1984 - 11/11/1984
Black-legged Kittiwake1997-4111/12/1997
Black-legged Kittiwake2006-151 11/2/2006
Black-legged Kittiwake2010-143 11/10/2010
Black-headed Gull23-88-3310/8/1988 - 10/9/1988
Little Gull23-88-3211/13/1988
Little Gull23-89-198/30/1989
Little Gull2002-80 9/18/2002
Little Gull2014-120 08/19/2014
Ross's Gull2010-151 11/19/2010 - 11/23/2010
Laughing Gull23-77-194/17/1977
Laughing Gull23-93-4412/13/1993
Laughing Gull23-95-378/31/1995
Laughing Gull2012-49 4/20/2012
Short-billed Gull23-85-11/29/1985
Short-billed Gull23-93-3511/18/1992
Short-billed Gull23-96-2511/2/1996
Short-billed Gull1999-5811/20/1999 - 11/21/1999
Short-billed Gull2005-138 12/12/2005
Short-billed Gull2008-136 11/29/2008
Short-billed Gull2014-019 09/27/2008
Short-billed Gull2010-153 11/21/2010
Western Gull2011-81 6/1/2011 - 6/18/2011
Iceland Gull2005-9 2/11/2005 - 2/12/2005
Iceland Gull2014-092 12/11/2010
Iceland Gull2011-183 12/31/2011
Iceland Gull2014-006 01/11/2014
Iceland Gull2014-042 01/19/2014
Lesser Black-backed Gull23-90-2511/17/1990
Lesser Black-backed Gull23-92-4111/11/1992 - 11/14/1992
Lesser Black-backed Gull23-92-902/24/1992
Lesser Black-backed Gull1999-6812/4/1999
Lesser Black-backed Gull2000-5711/12/2000
Lesser Black-backed Gull2000-6010/15/2000
Lesser Black-backed Gull2001-14512/24/2001
Slaty-backed Gull2014-008 01/03/2014
Glaucous-winged Gull23-89-204/11/1989 - 4/16/1989
Glaucous-winged Gull23-92-825/1/1990
Glaucous-winged Gull23-92-813/1/1992 - 4/1/1992
Glaucous-winged Gull2001-163/9/2001
Glaucous-winged Gull2002-129 2/26/2002
Glaucous-winged Gull2003-223/29/2003 - 3/30/2003
Glaucous-winged Gull2005-15 3/14/2005
Glaucous-winged Gull2011-182 12/31/2011
Glaucous-winged Gull2013-268 11/24/2013
Glaucous-winged Gull2014-010 01/03/2014
Glaucous-winged Gull2016-004 01/13/2015
Glaucous-winged Gull2017-005 01/15/2017
Glaucous-winged Gull2017-078 01/15/2017
Glaucous-winged Gull2017-079 01/28/2017
Glaucous-winged Gull2019-014 02/20/2019
Great Black-backed Gull23-80-141/3/1980 - 1/4/1980
Great Black-backed Gull23-95-449/17/1995 - 10/25/1995
Great Black-backed Gull2000-6310/15/2000 - 11/12/2000
Great Black-backed Gull2005-10 2/12/2005
Great Black-backed Gull2013-108 01/23/2011
Arctic Tern2013-213 09/21/2013
Red-throated Loon1-78-1812/17/1977 - 12/25/1977
Red-throated Loon1-86-5911/2/1986
Red-throated Loon1-92-811/14/1992
Red-throated Loon1-93-10011/11/1993
Red-throated Loon2010-150 11/19/2010
Red-throated Loon2011-35 4/19/2011
Wood Stork#147118/30/1902
Wood Stork#74178/30/1902
Magnificent Frigatebird2020-0258 Nov 2020
Neotropic Cormorant4-94-610/30/1994
Neotropic Cormorant2011-147 10/22/2011
Neotropic Cormorant2011-25 4/8/2011 - 4/15/2011
American White Pelican2016-10801 Jan 2016
Brown Pelican1999-99/5/1999
Little Blue Heron5-75-334/12/1975 - 4/15/1975
Little Blue Heron2013-30806 Jun 2013
Yellow-crowned Night-Heron#69875/3/1914
Yellow-crowned Night-Heron2012-139 7/25/2012 - 7/26/2012
Glossy Ibis1999-154/26/1999
Swallow-tailed Kite10-83-254/7/1983 - 5/24/1983
Red-shouldered Hawk2000-271/1/2000 - 3/11/2000
Snowy Owl2011-181 12/28/2011
Yellow-bellied Sapsucker2015-018 01/22/2011
Northern Flicker2013-29709 Feb 2013
White-eyed Vireo2014-19603 Jun 2014
White-eyed Vireo2015-020 05/23/2014
Blue-headed Vireo2008-99 9/4/2008
Philadelphia Vireo51-75-1379/14/1971
Philadelphia Vireo51-81-439/8/1980
Bushtit2015-15229 Jun 2015
Carolina Wren42-89-371/4/1989
Carolina Wren2000-11312/12/1999
Northern Mockingbird2014-18922 Apr 2014
Western Bluebird2019-023 10 Oct 2019
Gray-cheeked Thrush44-76-585/17/1976
Varied Thrush2011-169 11/21/2011
Common Redpoll2013-135 12/13/2012
Common Redpoll2013-86 12/28/2012
Common Redpoll2013-89 02/06/2013
Common Redpoll2013-92 03/11/2013
Common Redpoll2015-15401 Nov 2015
Golden-crowned Sparrow2001-171/1/2001
Golden-crowned Sparrow2012-199 10/10/2012
Nelson's Sparrow2020-030 25 Sep 2020
Golden-winged Warbler52-85-446/6/1985
Prothonotary Warbler#337938/25/1962
Prothonotary Warbler52-96-799/29/1996
Mourning Warbler2008-100 9/5/2008
Bay-breasted Warbler52-73-546/16/1973
Blackburnian Warbler2005-84 9/3/2005
Black-throated Blue Warbler2011-22218 Oct 2011
Palm Warbler2008-16325 Sep 2008
Pine Warbler2005-94 9/15/2005
Pine Warbler2014-096 12/12/2011
Prairie Warbler2014-181 05/24/2014
Canada Warbler52-75-13510/27/1970
Canada Warbler52-94-8310/4/1994
Northern Cardinal2006-187 1/15/2006 - 3/30/2006
Rose-breasted Grosbeak2014-19530 May 2014