Management recommendations for the northern goshawk in the southwestern United States
The Region, 1992 - Nature - 184 pages
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abundance Accipiter American robin aspen average band-tailed pigeon basal area birds blue grouse breeding canopy cover chipmunk Colorado cone conifer cottontail densities Desired Conditions desired forest conditions diameter diet Douglas-fir downed logs eastern cottontail Ecology feeding feet foraging area Forest and Range forest cover types forest types fungi goshawk nest goshawk prey hairy woodpeckers herbaceous important inches DBH interlocking crowns large trees mammals Mexico mixed-species forests Mogollon Rim mountain cottontail nest areas nest sites nest trees northern flicker northern goshawk old-growth openings overstory pairs/100 acres Patton ponderosa pine forests populations post-fledgling family areas prey species Range Experiment Station red squirrel red-naped sapsucker regeneration rH rH seeds shrub snags southwest Southwestern Region spruce spruce-fir forests squirrel habitat Steller's jays timber harvesting understory USDA Forest Service vegetative structural stages Wildl Wildlife Williamson's sapsucker winter woodlands woody debris