Anguilla, Antigua And Barbuda, Aruba, Bahamas, Barbados, Belize, Bolivia, Brazil, Canada, Colombia, Costa Rica, Dominica, Dominican Republic, French Guiana, Guadeloupe, Haiti, Honduras, Martinique, Montserrat, Netherlands Antilles, Panama, Peru, Puerto Rico, St Kitts And Nevis, St Lucia, St Vincent and The Grenadines, Turks and Caicos Islands, USA (B), Venezuela.
Vagrant to Cuba, Ecuador, French Polynesia, Jamaica, Virgin Islands (U.S.).
Breeds in boreal zone of southern Canada (from central-eastern British Columbia east to south-western Quebec) and northern USA (northern Minnesota east to northern Michigan). Migrates to lowland South America from eastern Colombia and Venezuela south to northern Bolivia and west-central Brazil).
Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.
Population
Estimated population is 1,200,000 (2010).
Connecticut Warbler (Oporornis agilis) [XC653705]
by Mark Nenadov from Lyons Woods Forest Preserve, Lake County, Illinois, United States (song)
Connecticut Warbler (Oporornis) [XC244073]
by Matt Wistrand from Nashville, Davidson County, Tennessee, United States (song)
Subspecies
No subspecies.
Genus sometimes subsumed in Geothlypis. This species appears not particularly closely related to current congeners, and it has been suggested that it may merit placement in a monotypic genus. Reported hybrid with Mourning Warbler (Geothlypis philadelphia) generally considered to have been an aberrant individual of Mourning Warbler (Geothlypis philadelphia).
BirdLife International Species Factsheet