Skip to page content
USDA Forest Service
  
Treesearch

Research & Development Treesearch

 
Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Northern
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern Research Station
Help
 

Science.gov - We Participate


USA.gov  Government Made Easy


Global Forest Information Service

US Forest Service
P.O. Box 96090
Washington, D.C.
20090-6090

(202) 205-8333

You are here: Home / Search / Publication Information
Bookmark and Share

Publication Information

View PDF (775.0 KB bytes)

Title: Distribution, density, and productivity of accipiter hawks breeding in Oregon

Author: Reynolds, Richard T.; Wight, Howard M.;

Date: 1978

Source: Wilson Bulletin. 90(2): 182-196.

Publication Series: Scientific Journal (JRNL)

Description: 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 of accipiter hawks in the eastern United States (Schriver 1969, Hackman and Henny 1971, Henny and Wight 1972). One factor implicated in this decline was contamination with chlorinated hydrocarbons (Ratcliffe 1970, Cade et al. 1971, Anderson and Hickey 1972, Wiemeyer and Porter 1970). Snyder et al. (1973) presented data on levels of DDE in eggs of accipiter hawks from various regions in North America, including Oregon. Their data indicated that eggs of each species are contaminated, but they were unable to evaluate the effects of contamination on populations in Oregon as historical data on the abundance of breeding accipiters did not exist.

Keywords: accipiter hawks, Sharp-shinned Hawk, Accipiter striatus, Cooper's Hawk, Accipiter cooperii, Goshawks, Accipiter gentilis

Publication Notes:

  • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

XML: View XML

Citation:


Reynolds, Richard T.; Wight, Howard M. 1978. Distribution, density, and productivity of accipiter hawks breeding in Oregon. Wilson Bulletin. 90(2): 182-196.

 


 [ Get Acrobat ]  Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.