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Management recommendations for the northern goshawk in the southwestern United States
Present forest conditions--loss of a herbaceous and shrubby understory, reductions in the amount of older forests, and increased areas of dense tree regeneration--reflect the extent of humanExpand
Restoring composition and structure in Southwestern frequent-fire forests: A science-based framework for improving ecosystem resiliency
Ponderosa pine and dry mixed-conifer forests in the Southwest United States are experiencing, or have become increasingly susceptible to, large-scale severe wildfire, insect, and disease episodesExpand
A Variable Circular-Plot Method for Estimating Bird Numbers
-A bird census method is presented that is designed for tall, structurally complex vegetation types, and rugged terrain. With this method the observer counts all birds seen or heard around a station,Expand
Nesting Habitat of Coexisting Accipiter in Oregon
The distribution of nesting pairs of 3 species of Accipiter and the habitat they used for nesting in the conifer forests of Oregon were determined during spring and summer 1969-74. Each speciesExpand
Partitioning of Food and Niche Characteristics of Coexisting Accipiter During Breeding
Etude de l'abondance des ressources et de leur utilisation par Accipiter striatus et A. cooperii dans deux zones de l'Oregon de 1969 a 1974
Northern goshawk (Accipiter gentilis)
The Northern Goshawk (hereafter referred to as Goshawk) is a large forest raptor, occupying boreal and temperate forests throughout the Holarctic. In North America, it breeds from Alaska toExpand
An ecological basis for ecosystem management
This report was prepared by the Southwestern Regional Ecosystem Management Study Team composed of management and research biologists. The USDA Forest Service Southwestern Regions Regional Forester,Expand
JUVENILE MOVEMENT AND NATAL DISPERSAL OF NORTHERN GOSHAWKS IN ARIZONA
Abstract We investigated the departure, transient movement, and local settlement stages of natal dispersal in a population of Northern Goshawks (Accipiter gentilis) on the Kaibab Plateau of northernExpand
Sexual Dimorphism in Accipiter Hawks: A New Hypothesis
morphism from vulturine species, through the intermediate mammalian and insect-feeding predators, to the extreme found in the highly active bird-capturing hawks (e.g., certain accipiters andExpand
DISTRIBUTION, DENSITY, AND PRODUCTIVITY OF ACCIPITER HAWKS BREEDING IN OREGON
Density of nests and productivity of Sharp-shinned Hawks (Accipiter striatus), Cooper's Hawks (A. cooperii), and Goshawks (A. gentilis) within Oregon are of interest because of recent declines ofExpand
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