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)
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
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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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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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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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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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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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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Lower Latham Reservoir
Habitat: Pond/Lake/Reservoir, Wet Meadow, Marsh
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Mitani-Tokuyasu State Wildlife Area
Habitat: Lowland Riparian, Stream
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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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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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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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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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