Main Hawaiian Is: Kauai, Oahu, Molokai, Maui and Hawaii.
 
Population
Estimated population is 350,000 (2010) and decreasing.
Status VU
Habitat degradation and predation by introduced mammals such as cattle, pigs, cats and rats, avian malaria, carried at low elevations by introduced mosquitos, are the main threats.
For more information see BirdLife International Species Factsheet.
Iiwi (Drepanis coccinea) [XC58939]
by Ryan P. O'Donnell from Hakalau NWR, E slope Mauna Kea, Hawai'i (Big Island), HA, United States (call)
Iiwi (Drepanis coccinea) [XC256225]
by Ulf Elman from Alakai Swamp Trail, Kauai County, Hawaii, United States (call)
Nest
An open, loosely made cup, in a tree or bush.
Subspecies
No subspecies.
Long regarded as sole member of genus Vestiaria, but this was subsumed into present genus (other members of which now extinct) on grounds that the only defining characters at species level are colour differences. Birds from Molokai described as subspecies suavis, but appear inseparable from those in rest of species' range.