Migration.—Late dates of spring departure are: Colombia—Fusagasugá, March 24. Panamá—Volcán de Chiriquí, April 16. Costa Rica—Vara Blanca, April 9. Florida—Pensacola, April 22. Alabama—Hollins, May 7. Georgia—Athens, May 13. South Carolina—Clemson College, May 3. North Carolina—Raleigh, May 7. District of Columbia—Washington, May 20. Mississippi—Gulfport, April 18. Missouri—St. Louis, May 25.
Early dates of spring arrival are: Florida—Pensacola, April 5. Alabama—Barachias, April 22. Georgia—Milledgeville, April 12. South Carolina—Clemson College, April 21. North Carolina—Asheville, April 23. Virginia—Lynchburg, April 19. West Virginia—Bluefield, April 19. District of Columbia—Washington, April 24. Pennsylvania—Beaver, April 24. New York—Rochester, April 29. Massachusetts—Belmont, April 28. Louisiana—Grand Isle, April 6. Mississippi—Gulfport, April 10. Tennessee—Memphis, April 12. Illinois—Olney, April 17. Indiana—Sedan, April 27. Michigan—Plymouth, April 30. Ohio—Youngstown, April 27. Ontario—London, April 30. Missouri—St. Louis, April 18. Iowa—Keokuk, April 27. Wisconsin—Sheboygan, April 30. Minnesota—Minneapolis, April 30. The golden-winged warbler ranges west to central Iowa in migration, and in the lower Mississippi Valley is much less abundant in spring than in fall.
Late dates of fall departure are: Minnesota—Minneapolis, September 30. Wisconsin—Madison, October 11. Ontario—Point Pelee, September 2. Ohio—Ellsworth Station, September 23. Michigan—Ann Arbor, October 6. Indiana—Lyons, September 27. Illinois—Chicago, October 7. Missouri—La Grange, September 30. Kentucky—Versailles, September 25. Tennessee—Athens, September 29. Louisiana—New Orleans, September 25. Mississippi—Gulfport, October 8. Massachusetts—Danvers, September 7. New York—Brooklyn, October 2. Pennsylvania—Jeffersonville, October 2. District of Columbia—Washington, September 14. West Virginia—French Creek, September 15. North Carolina—Piney Creek, October 3. South Carolina—Chester, September 22. Georgia—Atlanta, October 9. Alabama—Greensboro, October 4.
Early dates of fall arrival are: Mississippi—Bay St. Louis, July 23. District of Columbia—Washington, August 8. Virginia—Naruna, August 23. North Carolina—Highlands, August 15. South Carolina—Charleston, August 20. Georgia—Athens, August 14. Alabama—Greensboro, August 11. Florida—Pensacola, August 14. Costa Rica—San José, September 15. Colombia—Bonda, September 6.
Casual record.—One reported seen at Fort Thorn, N. Mex., in April 1854 by Dr. Joseph Henry. Since no specimen was taken this remains on the hypothetical list for the State.
Egg dates.—Massachusetts: 14 records, May 27 to June 24; 9 records, May 30 to June 7, indicating the height of the season.
Michigan: 33 records, May 13 to June 10; 18 records, May 17 to 30.
New York: 6 records, June 3 to 24.
New Jersey: 7 records, May 25 to June 5 (Harris).