Bahamas (NB), Turks and Caicos Islands (NB), USA (B).
Vagrant to Bermuda.
Unknown to Canada (B).
Breeds in north-central Michigan, in northern USA; migrates to Bahamas and Turks and Caicos Is.
 
Population
Estimated population is 2,500 (2010) and increasing.
Status NT
Habitat loss and degradation on the wintering ground is probably the main threat. Fire suppression and brood-parasitism by Brown-headed Cowbird (Molothrus ater) may also be threats.
For more information see BirdLife International Species Factsheet.
Kirtland's Warbler (Setophaga kirtlandii) [XC322474]
by Jesse Fagan from Rome (appox location), Adams County, Wisconsin, United States (song)
Kirtland's Warbler (Setophaga kirtlandii) [XC423228]
by Sue Riffe from Montmorency Township (near Atlanta), Montmorency County, Michigan, United States (call, song, alternative call)
Subspecies
No subspecies.
Relationships within genus unclear. Possible hybrid between this species and Blackburnian Warbler (Setophaga fusca) reported from Hispaniola.