LEAST BITTERN. 



29 



mens in U. S. National Museum) ; near Crane Lake, Saskatchewan. 

 June 7. 1905 (Bent). Young out of the nest were found at Guelph, 

 Ontario, at the early date of June 1, 1901 (Walker), and young a 

 week old at Meridian, N. Y., May 31, 1898 (Tabor). 



Fall migration. 



The first in fall migration arrived at Frogmore, S. C., August 26, 

 1886 (Hoxie), and at St. Marys, Ga., September 12, 1905 (Arnow). 



[Pinnated Heron. Botaurus pinnatus (Wagler). 



This species ranges in South America, in Argentina, Brazil, and Guiana, and 

 has one somewhat doubtful record for Nicaragua (Lawrence).] 



Least Bittern. Ixobrychus exilis (Gmelin). 



Range. North America north to Oregon, Saskatchewan, and New 

 Brunswick, and thence south in winter to Chile and southern Brazil. 



Breeding range. The least bittern is a regular and common breeder 

 in the eastern United States north of latitude 39 and west of New 

 England. The breeding range extends north to St. John, N. B. 

 (Chamberlain) ; Ottawa, Ontario (White) ; Grand Eapids, Mich. 

 (Milliken) ; Ripon, Wis. (Cooke) ; White Earth, Minn. (Cooke) ; 

 Crane Lake, Saskatchewan (Macoun) ; and probably in southern 

 Manitoba. Its western limit is near the hundredth meridian at Hays. 

 Kans. (Lantz) ; Long Pine, Nebr. (Bates) ; and Roscoe, S. Dak. 

 Throughout the Rocky Mountain region the species is absent as a 

 breeder, but appears again in small numbers along the Pacific coast 

 at San Luis Rey, Cal. (Sharp) ; Los Angeles, Cal. (Grinnell) ; and 



