512 U.S. NATIONAL MUSEUM BULLETIN 237 part i 



Migration. — The data apply to the species as a whole. Late dates 

 of spring departure are: Florida — Sumner, February 13. South 

 Carolina — Mount Pleasant, May 26. North Carolina — Highlands, 

 June 17. Virginia — Blacksburg, June 12. West Virginia — Gaudineer 

 Knob, Pocahontas County, June 15. District of Columbia — 

 June 5. Maryland — Salisbury, May 30. Delaware — Lewes, May 19. 

 Pennsylvania — State College, May 19. New York — Cayuga and 

 Oneida Lake basins, June 9 (median of 7 years. May 22) ; Suffolk 

 County, June 3. Massachusetts — Martha's Vinyard, June 20. 

 New Hampshire — Concord, June 7. Quebec — Rawdon, May 31. 

 New Brunswick — Scotch Lake, June 13. Louisiana — Mandeville, 

 March 27. Arkansas — Clinton, May 5. Tennessee — Nashville, June 

 20. Missouri — Shannon County, May 1. Illinois — Beach, June 1. 

 Indiana — Burlington, April 23. Ohio — Columbus, June 18. Michi- 

 gan — Oakland County, May 30. Ontario — London, May 24. 

 Iowa — Sioux City, May 2. Wisconsin — Madison, June 2. Minne- 

 sota — Nisswa, May 28. Texas — El Paso, May 10. Kansas — north- 

 eastern Kansas, April 15. Nebraska — Holstein, April 25. North 

 Dakota — Devil's Lake, June 23. Manitoba — Trees Bank, June 11. 

 Saskatchewan — Indian Head, June 27. Arizona — Canelo, May 6. 

 Colorado — Fort Garland, June 7. 



Early dates of fall arrival are: California — Mount Pinos, October 



10. Alberta — Calgary, October 2. Montana — Libby, November 24. 

 North Dakota — northern North Dakota, September 11. South 

 Dakota — Milbank and Brookings, October 6. Nebraska — Bladen, 

 October 29. Kansas — northeastern Kansas, September 25. Texas — 

 El Paso, September 28. Iowa — Davenport, August 30. Ohio — 

 Columbus, October 11. Illinois — Lake Forest, October 29. Arkan- 

 sas — Texarkana, September 10. Connecticut — New Haven, October 



11. New York — Cayuga and Oneida Lake basins, October 1. Penn- 

 sylvania — Port Clinton, October 10. Maryland — Ocean City, 

 September 12. Virginia — Bristol, August 10. North Carolina — 

 Raleigh, November 8. Florida — Fernandina, December 4. 



Egg dates. — New Brunswick: 1 record, August 6. 

 Kansas: 1 record, March 24. 

 New York: 4 records, March 30 to May 1. 

 Nova Scotia: 6 records, February 25 to April 27. 

 Ontario: 3 records, April 17 to April 29. 



