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Title: History of endemic Hawaiian birds: Part I: population histories, species accounts: forest birds: Hawaiian Hawk ('Io) 
Author: Banko, Winston E
Date: 1980-06
Publisher: Cooperative National Park Resources Studies Unit, University of Hawaii at Manoa, Department of Botany
Citation: Banko WE. 1980. History of endemic Hawaiian birds: part I: population histories, species accounts: forest birds: Hawaiian hawk ('Io). Honolulu (HI): Cooperative National Park Resources Studies Unit, University of Hawaii at Manoa, Department of Botany. CPSU/UH Avian History Report, 6a.
Abstract: Buteo solitarius is a medium-sized, light to dark brown, broad-winged hawk endemic to the island of Hawai'i. The hawk has been recorded by many observers at high and low elevations in all major districts of Hawai'i from 1778 through the present. Distributional records are shown by U.S. Geological Survey quadrangle. References and names of observers are cited. Completeness of data, bias, erroneous and doubtful records are addressed. Findings are summarized. It is suggested that a long-term population decline is occurring. Except for Hawaii Volcanoes National Park, where specific long-term census data have been collected, there is yet no factual basis from which the overall population size or future trend may be estimated. More information on the home range, life requirements, and population ecology of the 'Io is needed.
Series/Report No.: Avian History Report
6a
Description: Reports were scanned in black and white at a resolution of 600 dots per inch and were converted to text using Adobe Paper Capture Plug-in.
Sponsorship: Hawaii Volcanoes National Park; National Park Service Contract No. CX 8000 8 0012
URI: http://hdl.handle.net/10125/345
Keywords: Buteo solitarius, Io
LC Subject Headings: Hawaiian hawk.
Hawks.
Endemic birds -- Hawaii -- History.
Forest birds -- Hawaii.
Bird populations -- Hawaii.
Rare birds -- Hawaii.
Endangered species -- Hawaii.

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This item appears in the following Collection(s)

  • The Avian History Reports [20]
    This collection presents the Avian History Reports (AHR), A Historical Synthesis of Recent Endemic Hawaiian Birds (1979-1990).

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