26 



NORTH AMERICAN HERONS AND THEIR ALLIES. 



and Paraguay to Cordoba, Argentina (Dabbene) ; and to Buenos 

 Aires, Argentina (Hudson). It also ranges west to central Peru 

 (Taczanowski). Eggs were taken October 10, 1904, on the Chaco of 

 Argentina (Hartert and Venturi). 



O OCCURRENCE IN SUMMER 

 WINTERING 



IN 

 RESIDENT 



FIG. 9. Bittern (Botaurus lentiginosus) . 

 Bittern. Botaurus lentiginosus (Montagu). 



Range. Nearly the whole of North America, from Panama and the 

 Greater Antilles north to British Columbia, Mackenzie, and New- 

 foundland. 



Breeding range. The bittern is one of the most northern breed- 

 ing members of its family. During the summer it ranges north to 



