Important Bird Areas

Jackson Canyon Eagle Roost

Wyoming

The Jackson Canyon Eagle Roost site is located approximately 10 miles southwest of Casper, Wyoming and includes all of the Eagle Ridge Ranch, 160 acres of privately owned land, and areas on Casper Mountain. A large concentration of raptors use the Jackson Canyon and Little Red Creek areas as roosts. They also roost in the cottonwood groves along the North Platte River corridor immediately adjacent to the Eagle Roost Site and the private land that straddles the river is intensively used by the eagles. This site contains two overnight communal roosts, and is one of the most active roost areas in central Wyoming. Eagle Ridge is a major hawk and eagle flyway.

Ornithological Summary

Partner?s-In-Flight Level I: Greater Sage-Grouse
Brewer?s Sparrow
Swainson?s Hawk (actual nest is just outside the IBA, but it feeds regularly within the IBA)
Northern Goshawk (Probably nests on eastern edge of IBA)
Bald Eagle (winter roost and feeding only)

Partner?s-In-Flight Level II: Lark Bunting
American White Pelican (Feeding Only)
Gray Flycatcher
Red-naped Sapsucker
Pigmy Nuthatch
Dusky Flycatcher
Sage Thrasher
Eastern Screech-Owl
Broad-tailed Hummingbird
Loggerhead Shrike
Vesper Sparrow
Lark Sparrow
Ash-throated Flycatcher
Bushtit
Brown Creeper
Merlin

Partner?s-In-Flight Level III: Virginia?s Warbler
Prairie Falcon (has not nested recently)
Black-throated Gray Warbler
Blue Grouse
Common Poorwill
Golden Eagle (nests and roosts in both roosts during the winter)
Northern Harrier
Lazuli Bunting
Say?s Phoebe
Northern Rough-winged Swallow (only known nests are 50 yards from IBA boundary)
Clark?s Nutcracker
Rock Wren
Canyon Wren
Bullock?s Oriole

All of the above birds are probable regular nesting birds except as noted. Actual evidence of nesting has not been documented in all cases. Many more species use the IBA during migration and at other times for displaced birds. For instance, Dickcissel and Grasshopper Sparrows (Level II birds) show up and sing for a while in June and July in some years, but nesting probably does not occur.

Conservation Issues

Potenial for gravel pit development.

Habitat

The majority of the habitat is comprised of sagebrush shrubland (50%), while aspen, cliff/rock, lowland riparian, open water, pinyon juniper and ponderosa pine make up the remaining 50% of habitat located on the site. The site is utilized for livestock grazing only.

Land Use

Cattle grazing.