breeds on Hawai`i in the Hawaiian Islands (USA
), with vagrants recorded on Maui, O'ahu and Kaua'i. The population is thought to be fairly stable (J. Nelson in litt.
, and estimates range from 1,457 (Klavitter et al.
and 1,600 (1,120 adults) to 2,700 birds (Hall et al
1997, Griffin et al.
. The lack of information on historical numbers makes an assessment of this species difficult, and the underlying trend may be of gradual decline as nesting habitat disappears (J. Klavitter in litt.
1999). The rapid occupation of abandoned breeding territories suggests that the species may now be at or near the carrying capacity of remaining habitat (J. Nelson in litt.
. Rights Holder
: International Union for Conservation of Nature and Natural ResourcesBibliographic Citation
: BirdLife International 2012. Buteo solitarius
. In: IUCN 2014 . IUCN Red List of Threatened Species. Version 2014.1 . <www.iucnredlist.org