_Winter range._--In winter the Tennessee warbler is found =north= to central Guatemala (Volcán de Santa María, Cobán, and Gualán). =East= to eastern Guatemala (Gualán); northeastern El Salvador (Mount Cacaguatique); eastern Nicaragua (Río Escondido); eastern Costa Rica (Puerto Limón); eastern Panamá (Barro Colorado and Permé); northern Colombia (Santa Marta region); and northern Venezuela (Caracas). =South= to northern Venezuela (Caracas and Mérida); and northwestern Colombia (Concordia). =West= to western Colombia (Concordia and Antioquia); Panamá (Paracaté); Costa Rica (El General and Liberia); El Salvador (Puerto de Triunfo); and Guatemala (Tecpán and Volcán de Santa María). It has also been found to the first of January (possibly delayed migration) at Knoxville (1936) and at Nashville (1935), Tenn.; and one wintered (1934-35) in Cameron County, Tex. _Migration._--Late dates of departure from the winter home are: Colombia--Miraflores, April 19. Costa Rica--San Isidro del General, April 30. El Salvador--San Salvador, April 25. Guatemala--Livingston, April 8. Chiapas--Tixtla Gutiérrez, May 8. Tamaulipas--Gómez Farías, April 27. Early dates of spring arrival are: Cuba--Habana, April 8. Florida--Sandy Key, April 13. Georgia--Athens, April 13. District of Columbia--Washington, May 2. West Virginia--French Creek, April 20. Pennsylvania--McKeesport, April 27. New York--Corning, May 3. Massachusetts--Northampton, May 8. Maine--Waterville, May 11. New Brunswick--Petitcodiac, May 19. Quebec--Quebec, May 19. Louisiana--Avery Island, April 6. Arkansas--Winslow, April 8. Tennessee--Memphis, April 9. Kentucky--Bowling Green, April 19. Indiana--Bloomington, April 12. Ohio--Columbus, April 25. Michigan--Ann Arbor, April 21. Ontario--Ottawa, May 12. Missouri--Columbia, April 22. Iowa--Sigourney, April 25. Wisconsin--St. Croix Falls, April 25. Minnesota--Clarissa, April 30. Kansas--Winfield, April 19. Nebraska--Red Cloud, April 18. South Dakota--Vermillion, May 1. North Dakota--Fargo, May 1. Manitoba--Margaret, May 3. Colorado--Estes Park, May 14. Wyoming--Torrington, May 12. Montana--Great Falls, May 9. Alberta--Belvedere, May 1. British Columbia--Carpenter Mountain, Cariboo, May 15; Atlin, May 26.