Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): Suzanne M. Joy; Richard T. Reynolds; Douglas G. Leslie
    Date: 1994
    Source: Studies in Avian Biology. 16: 24-30.
    Publication Series: Scientific Journal (JRNL)
    Station: Rocky Mountain Research Station
    PDF: View PDF  (526.77 KB)

    Description

    We examined responses of Northern Goshawks (Accipter gentilis) to taped broadcast calls of conspecifics in tree-harvest areas and around alternate goshawk nests on Kaibab National Forest, Arizona, in 1991 and 1992. Forest areas totaling 476 km2 were systematically surveyed for goshawks. Ninety responses by adult and juvenile goshawks were elicited and 15 active nests were located. No difference in response rates between sexes was detected. Adult males, however, tended to approach the broadcaster without vocalizing, whereas adult females approached while vocalizing. Our success in finding active nests after getting responses from females was greater than after male responses. Goshawks responded more often to broadcasts during the nestling (2.0 responses/100s tations) than fledgling (1.0 responses/100 stations) period. During the fledgling period, adults were more likely to respond to broadcasts than juveniles. Total costs associated with our surveys for goshawks were $58- 82 per km2 and $4.15-5.80 per broadcast station, depending on salaries.

    Publication Notes

    • You may send email to rmrspubrequest@fs.fed.us to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • 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.

    Citation

    Joy, Suzanne M.; Reynolds, Richard T.; Leslie, Douglas G. 1994. Northern goshawk broadcast surveys: Hawk response variables and survey cost. Studies in Avian Biology. 16: 24-30.

    Keywords

    Accipiter gentilis, broadcast surveys, Kaibab Plateau, Northern Goshawk, vocalization

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page