Species Profile
Environmental Conservation Online System

Hawaiian Hawk (Buteo solitarius)

Kingdom: Animalia
Class: Aves
Order: Accipitriformes
Family: Accipitridae

Listing Status:   

Where Listed: WHEREVER FOUND

General Information

This graceful bird of prey measures 16 to 18 inches in length, the female being larger. Two color phases exist: a dark phase (dark brown head, breast, and underwings), and a light color phase (dark head, light breast and light underwings). Feet and legs are yellowish in adults and greenish in immatures.

Map of Species occurrence

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Map Image Map of Species occurrence Map of Species occurrence

This map represents our best available information about where a species is currently known to or or is believed to occur; however, it should NOT be used as an official species list for Section 7 Consultation purposes. To obtain an official species list for this purpose, please visit the Information, Planning, and Conservation (IPaC) System (click here: http://ecos.fws.gov/ipac)


This population has been proposed for delisting
This species is listed wherever it is found, but
    • States/US Territories in which the Hawaiian Hawk, Entire is known to or is believed to occur:  Hawaii
    • US Counties in which the Hawaiian Hawk, Entire is known to or is believed to occur:  View All
    • USFWS Refuges in which the Hawaiian Hawk, Entire is known to occur:  HAKALAU FOREST NATIONAL WILDLIFE REFUGE
Current Listing Status Summary
Status Date Listed Lead Region Where Listed
03/11/1967 Pacific Region (Region 1) Entire

» Federal Register Documents

Most Recent Federal Register Documents (Showing 5 of 6: view all)
Date Citation Page Title
06/05/2009 74 FR 27004 27005 Removing the Hawaiian Hawk From the Federal List of Endangered and Threatened Wildlife
02/11/2009 74 FR 6853 6854 Removing the Hawaiian Hawk From the Federal List of Endangered and Threatened Wildlife
08/06/2008 73 FR 45680 45689 ETWP; Withdrawal of Proposed Reclassification of the Hawaiian Hawk or Io (Buteo solitarius) From Endangered to Threatened; Proposed Rule To Remove the Hawaiian Hawk From the Federal List of Endangered and Threatened Wildlife
03/08/2007 72 FR 10547 10550 Initiation of 5-Year Reviews of 71 Species in Oregon, Hawaii, Commonwealth of the Northern Mariana Islands, and Territory of Guam
08/05/1993 58 FR 41684 41688 ETWP; Proposed Reclassification of the Hawaiian Hawk from Endangered to Threatened Status

» Recovery

Recovery Plan Information Search
Current Recovery Plan(s)
Date Title Plan Action Status Plan Status
05/09/1984 Hawaiian Hawk Recovery Plan View Implementation Progress Final
Other Recovery Documents (Showing 4 of 4)
Date Citation Page Title Document Type
06/05/2009 74 FR 27004 27005 Removing the Hawaiian Hawk From the Federal List of Endangered and Threatened Wildlife
  • Notice Public Hearing
  • Notice Reopen Comment
  • Proposed Delisting, Recovered
  • 02/11/2009 74 FR 6853 6854 Removing the Hawaiian Hawk From the Federal List of Endangered and Threatened Wildlife
  • Notice Doc. Availability, Draft Post Delisting Monitoring Plan
  • Notice Reopen Comment
  • Proposed Delisting, Recovered
  • 08/06/2008 73 FR 45680 45689 ETWP; Withdrawal of Proposed Reclassification of the Hawaiian Hawk or Io (Buteo solitarius) From Endangered to Threatened; Proposed Rule To Remove the Hawaiian Hawk From the Federal List of Endangered and Threatened Wildlife
  • Final Withdrawal, Other reasons
  • Notice 12 month petition finding, Warranted
  • Notice 90-day Petition Finding, Substantial
  • Proposed Delisting, Recovered
  • 03/08/2007 72 FR 10547 10550 Initiation of 5-Year Reviews of 71 Species in Oregon, Hawaii, Commonwealth of the Northern Mariana Islands, and Territory of Guam
  • Notice 5-year Review, Initiation
  • » Critical Habitat

    No critical habitat rules have been published for the Hawaiian Hawk, Entire.

    » Conservation Plans

    No conservation plans have been created for Hawaiian Hawk, Entire

    » Petitions

    Most Recent Petition Findings (Showing 1 of 1)
    Date Citation Page Title Finding
    08/06/2008 73 FR 45680 45689 ETWP; Withdrawal of Proposed Reclassification of the Hawaiian Hawk or Io (Buteo solitarius) From Endangered to Threatened; Proposed Rule To Remove the Hawaiian Hawk From the Federal List of Endangered and Threatened Wildlife
  • Final Withdrawal, Other reasons
  • Notice 12 month petition finding, Warranted
  • Notice 90-day Petition Finding, Substantial
  • Proposed Delisting, Recovered
  • » Life History

    No Life History information has been entered into this system for this species.

    » Other Resources

    NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

    ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world.

    Last updated: June 18, 2013