EXTIRPATED & DECLINING SPECIES IN BOULDER COUNTY
Other species to monitor in the plains: prairie dogs, ferruginous hawk. Prairie dogs are a keystone species which means that many other species depend on them within the food web, especially raptors (birds of prey such as the ferruginous hawk). Prairie dog colonies face a series threat from development county-wide.

PLAINS

Birds

Sharp-tailed grouse (E)
Long-billed curlew (E)
American bittern (D)
Burrowing owl (D)
Red-headed woodpecker (D)
Northern harrier (D)
Swainson's hawk (D)
Loggerhead shrike (D)
Northern bobwhite (D)
Long-eared owl (D)
Brown thrasher (D)

Mammals

Bison (E)
Black-footed ferret (E)
Pronghorn antelope (E)
White-tailed jackrabbit (D)
Preble's meadow jumping mouse (D)
Merriam's shrew (D)

 

 

COUNTY-WIDE
Mammals

Gray wolf (E)
Grizzly bear (E)
River otter (E)

Other speices to keep an eye on county-wide: elk (ability to migrate between high and low elevations), all native fish.


MOUNTAINS
Mammals

Lynx (E)
Bobcat (E)
Wolverine (D)

Birds
Barrow's goldeneye (E)
Mountain plover (E)
Northern goshawk (D)
Willow flycatcher (D)

Other species to watch in the mountains: bighorn sheep, boreal toad, northern leopard frog


 

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Table of Contents/ Overview/Boulder County at a Glance/A Vision for the Environment /
Air Quality/Watershed Water Quality/Water Imports from the Western Slope/
Land Annexation/Agricultural Land/Vehicle Miles Traveled/Recycling/Sources of Data