NORTH AMERICAN MARSH BIRDS 83 



Massachusetts (Attleboro Falls, January 16, 1901, and Ipswich, 

 December 16, 1917). 



Spring migration. — Early dates of arrival on the Atlantic coast are: 

 Virginia, Tomsbrook, March 11; New Jersey, Norristown, March 20; 

 Massachusetts, Boston, March 25; Maine, Deering, April 4; Nova 

 Scotia, Pictou, April 15. In the spring in the Mississippi Valley 

 bitterns have been reported from Missom*i, Monteer, March 26; 

 Illinois, Liter, March 28, and Chicago, March 29; Ohio, Oberlin, 

 March 25; Wisconsin, Madison, March 30; Michigan, Detroit, March 

 12; and from Ontario, London, on April 12. In the Great Plains 

 area bitterns arrive also in March and April; Kansas, Osawatomie, 

 March 19; Nebraska, Dunbar, March 21; North Dakota, Bathgate, 

 April 17; Manitoba, Greenridge, April 8; and Saskatchewan, 

 Qu' Appelle, April 21. The advance through the Rocky Mountain 

 region is a little later; Colorado, Fort Lyon, April 7, and Salida, 

 April 16; Wyoming, Fort D. A. Russell, April 23; Montana, south- 

 western part, April 5, and Terry, April 23; and Alberta, Onoway, 

 May 2. 



Late dates of spring departure are: Louisiana, New Orleans, 

 April 7; and Arkansas, Pike County, April 23. 



Fall migration. — Early fall arrivals at the winter range are : South 

 Carolina, Frogmore, August 26: Georgia, St. Mary's, September 12; 

 Florida, Orlando, September 9; Texas, Swan, August 28, and San 

 Angelo, September 4. 



Late dates of departure on the Atlantic seaboard are: Nova 

 Scotia, Pictou, October 24; Maine, Phillips, October 30; Massachu- 

 setts, Martha's Vineyard, November 1; New Jersey, Cape May 

 County, November 19; and Pennsylvania, Chester County, Decem- 

 ber 8. In the Mississippi Valley : Minnesota, Minneapolis, October 

 6; Wisconsin, Milwaukee, November 4, and Elkhorn, November 

 8; Iowa, Emmetsburg, November 6; Ohio, Lakeside, October 29; 

 Indiana, Goshen, November 1; Illinois, Rantoul, November 20; and 

 Missouri, St. Louis, November 19. In the Great Plains area: Sas- 

 katchewan, Qu'Appelle, October 16; Manitoba, Treebank, Novem- 

 ber 6; North Dakota, Marstonmoor, November 9; and Nebraska, 

 Long Pine, November 10. Bitterns leave the Rocky Mountain region 

 also at late dates: Alberta, Whitford Lake, October 29; Montana, 

 Terry, September 30; and Colorado, Mosca, October 23. An excep- 

 tionally belated individual was seen near Fort Morgan, Colorado, 

 December 28, 1904 (Felger). 



Casual records. — Stragglers from the normal range have been taken 

 or reported from Porto Rico, Jamaica, Bermuda (Pembroke Marshes) ; 

 Greenland (Egedesminde in 1809); while tliere are about twenty rec- 

 ords of occurence in Great Britain. It also has been reported from 

 Germany (near Leipzig). 



