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      • Sagebrush
      • Yucca
      • Shortgrass Prairie
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      • Scrub Oak Woodland
      • Pinyon-Juniper Forest
      • Foothill Shrubs
      • Ponderosa Pine Forest
      • Aspen Groves
      • Lodgepole Pine Forest
      • Streamside Willows
      • Spruce-Fir Forest
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      • Rimrock and Mesa Country
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A birder's guide to a very special place.

Birding By County

where to go and what you might find
  • Adams1
  • Alamosa2
  • Arapahoe3
  • Archuleta4
  • Baca5
  • Bent6
  • Boulder7
  • Broomfield8
  • Chaffee9
  • Cheyenne10
  • Clear Creek11
  • Conejos12
  • Costilla13
  • Crowley14
  • Custer15
  • Delta16
  • Denver17
  • Dolores18
  • Douglas19
  • Eagle20
  • El Paso21
  • Elbert22
  • Fremont23
  • Garfield24
  • Gilpin25
  • Grand26
  • Gunnison27
  • Hinsdale28
  • Huerfano29
  • Jackson30
  • Jefferson31
  • Kiowa32
  • Kit Carson33
  • La Plata34
  • Lake35
  • Larimer36
  • Las Animas37
  • Lincoln38
  • Logan39
  • Mesa40
  • Mineral41
  • Moffat42
  • Montezuma43
  • Montrose44
  • Morgan45
  • Otero46
  • Ouray47
  • Park48
  • Phillips49
  • Pitkin50
  • Prowers51
  • Pueblo52
  • Rio Blanco53
  • Rio Grande54
  • Routt55
  • Saguache56
  • San Juan57
  • San Miguel58
  • Sedgwick59
  • Summit60
  • Teller61
  • Washington62
  • Weld63
  • Yuma64
      Printable Guide for Boulder County

County Map Boulder County
Author(s):  Bill Kaempfer, Nathan Pieplow
County Seat: Boulder
Size: 741 square miles
Low Elevation: 4,893 ft. - St. Vrain Creek on the Weld border
High Elevation: 14,255 ft. - Longs Peak
Best Birds: Sharp-tailed Sandpiper (1975), Garganey (1992), Brambling (1983)
Checklist: Boulder County Checklist
Introduction: Though it is usually included in discussions of the "Metro Area," the city of Boulder considers itself distinct and has bought enough open space along its south and east borders to ensure that the suburbs of Denver never envelop it. With its numerous plains reservoirs, migrant traps, and mountain parks (including the highest part of Rocky Mountain National Park), Boulder County has something to offer the birder on every day of the year. Many thanks to Bill Schmoker for his comments and revisions on the text of this page, and to Bill Kaempfer and Randy Seibert for their contributions.
Contact the Editor with Corrections and Suggestions
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Birding Sites

Allenspark
Habitat: Mixed Conifer Forest, Aspen Grove, Urban/Suburban, Mountain Meadow, Lodgepole Forest
More Information
Baseline Reservoir
Habitat: Pond/Lake/Reservoir
More Information
Betasso Preserve
Habitat: Ponderosa Forest
More Information
Bobolink Trailhead
Habitat: Grassland/Prairie, Lowland Riparian, Stream
More Information
Boulder Creek & 75th Street
Habitat: Stream, Lowland Riparian, Grassland/Prairie
More Information
Boulder Creek (downtown section)
Habitat: Lowland Riparian, Stream
More Information
Boulder Reservoir
Habitat: Pond/Lake/Reservoir
More Information
Boulder Valley Ranch
Habitat: Short-grass Prairie, Yucca, Pond/Lake/Reservoir, Hedgerow/Shelterbelt
More Information
Brainard Lake area
Habitat: Spruce-Fir Forest, Pond/Lake/Reservoir, Streamside Willow, Krummholz, Alpine Tundra, Cliff Face
More Information
Button Rock Preserve
Habitat: Ponderosa Forest, Mixed Conifer Forest, Foothill Shrub, Stream, Cliff Face, Mountain Meadow, Streamside Willow
More Information
Caribou Ranch Open Space
Habitat: Ponderosa Forest, Lodgepole Forest, Mixed Conifer Forest, Mountain Meadow, Streamside Willow, Foothill Shrub
More Information
Cottonwood Trailhead and Hayden Lake
Habitat: Pond/Lake/Reservoir, Stream, Lowland Riparian, Grassland/Prairie
More Information
CU South Campus Ponds
Habitat: Pond/Lake/Reservoir, Grassland/Prairie, Hedgerow/Shelterbelt
More Information
Doudy Draw and the Mesa Trail
Habitat: Lowland Riparian, Stream, Foothill Shrub, Grassland/Prairie, Ponderosa Forest, Cliff Face
More Information
Eldorado Canyon State Park
Habitat: Lowland Riparian, Cliff Face, Stream, Mixed Conifer Forest, Ponderosa Forest, Mountain Meadows
More Information
Greenbelt Plateau Trailhead
Habitat: Grassland/Prairie
More Information
Gregory Canyon
Habitat: Ponderosa Forest, Foothill Shrub, Lowland Riparian, Cliff Face, Stream
More Information
Gunbarrel and Niwot area
Habitat: Pond/Lake/Reservoir, Stream, Lowland Riparian, Grassland/Prairie
More Information
Hall Ranch Open Space
Habitat: Foothill Shrub, Ponderosa Forest
More Information
Heil Valley Ranch
Habitat: Ponderosa Forest, Mountain Meadow, Foothills Shrub, Cliff Face
More Information
Highland Reservoir #2
Habitat: Pond/Lake/Reservoir
More Information
Humane Society Dog Walk Park
Habitat: Stream, Lowland Riparian, Marsh
More Information
Ish Reservoir
Habitat: Pond/Lake/Reservoir
More Information
Jim Hamm Nature Area
Habitat: Pond/Lake/Reservoir, Hedgerow/Shelterbelt
More Information
Lafayette Storage Ponds
Habitat: Pond/Lake/Reservoir
More Information
Lagerman Reservoir and the Swede Lakes
Habitat: Pond/Lake/Reservoir, Grassland/Prairie, Marsh
More Information
Left Hand Valley Reservoir area
Habitat: Lake/Pond/Reservoir, Grassland/Prairie
More Information
Little Gaynor Lake
Habitat: Pond/Lake/Reservoir
More Information
Lyons Area
Habitat: Lowland Riparian, Foothill Scrub, Cliff Face, Stream, Urban/Suburban
More Information
Marshall Mesa
Habitat: Pond/Lake/Reservoir, Foothill Shrub, Ponderosa Forest, Grassland/Prairie
More Information
McIntosh Lake
Habitat: Pond/Lake/Reservoir
More Information
Mount Sanitas
Habitat: Ponderosa Forest, Lowland Riparian, Foothill Shrub, Cliff Face
More Information
Panama Reservoir area
Habitat: Pond/Lake/Reservoir, Hedgerow/Shelterbelt, Wet Meadow
More Information
Pella Crossing Park
Habitat: Pond/Lake/Reservoir
More Information
Prince Lakes, Erie and Thomas Reservoirs
Habitat: Pond/Lake/Reservoir
More Information
Rabbit Mountain Open Space
Habitat: Mixed Conifer Forest
More Information
Reservoirs west of Hygiene
Habitat: Pond/Lake/Reservoir
More Information
Rollins Pass (Boulder County section)
Habitat: Alpine Tundra
More Information
Saint Vrain Greenway
Habitat: Pond/Lake/Reservoir, Lowland Riparian, Stream, Urban/Suburban
More Information
Skunk Canyon
Habitat: Foothill Shrub, Ponderosa Forest
More Information
Sombrero Marsh
Habitat: Pond/Lake/Reservoir
More Information
Stearns Lake
Habitat: Pond/Lake/Reservoir, Marsh, Stream, Grassland/Prairie, Hedgerow/Shelterbelt
More Information
Teller Lake #5 and Culver Ponds
Habitat: Pond/Lake/Reservoir, Lowland Riparian, Hedgerow/Shelterbelt, Marsh
More Information
Terry Lake and Clark Reservoir
Habitat: Pond/Lake/Reservoir
More Information
Valmont Reservoir complex
Habitat: Pond/Lake/Reservoir, Grassland/Prairie, Hedgerow/Shelterbelt
More Information
Varsity Pond
Habitat: Pond/Lake/Reservoir, Lowland Riparian
More Information
Walden Ponds/Sawhill Ponds Complex
Habitat: Pond/Lake/Reservoir, Lowland Riparian, Marsh, Hedgerow/Shelterbelt, Stream
More Information
Walker Ranch Open Space
Habitat: Burn Area, Ponderosa Forest, Mountain Meadow, Stream, Aspen Grove
More Information
Waneka Lake
Habitat: Pond/Lake/Reservoir, Lowland Riparian, Marsh
More Information
Wild Basin
Habitat: Ponderosa Forest, Aspen Grove, Stream, Streamside Willow, Mountain Meadow, Lodgepole Forest, Burn Area
More Information

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Contributing Authors

Henry Armknecht Forrest Luke
Jason Beason Rich Miller
James Beatty Mark Minner-Lee
James D. Beatty Steven Mlodinow
Jim Berry SeEtta Moss
Sue Bonfield Mark Peterson
Allan Burns Nathan Pieplow
Todd Deininger Kim Potter
Jared Del Rosso Joe Roller
Coen Dexter Chris Rurik
Lisa Edwards Bill Schmoker
David M. Elwonger Randall Siebert
Barry Gingrich Dave Silverman
Dona Hilkey Virginia Simmons
Charles Hundertmark Andrew Spencer
Jeff Jones Steve Stachowiak
Bill Kaempfer David Suddjian
Hugh Kingery John Toolen
Nicholas Komar Linda Vidal
David Leatherman Mark Yaeger
Tony Leukering The Yampa Valley Birding Club
Rich Levad Sherrie York
Tom Litteral Eric Zorawowicz

Photo Credits

Margaret Arp Dick Maxfield
Carol Blackard Bill Maynard
Steve Bouricious Matt Newport
Steve Brown Christian Nunes
Bill Eden Brandon Percival
David Elwonger Nathan Pieplow
Dennis Garrison Ken Rush
Bruce Gill Bill Schmoker
Gregg Goodrich Larry Semo
Pat Gould Scott Severs
Larry Griffin Andrew Spencer
BB Hahn Jane Stulp
Thomas Heinrich Joel Such
Rachel Hopper Van Truan
Greg Joder Glenn Walbek
Dave Leatherman Cole Wild
Thomas Lechleitner Larry Wilson
Tony Leukering Sherman Wing
Dan Makolondra Chris Wood

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