BITTERNS. 203 



on neck in front, bend of wing and tibia 

 chestnut and top of head white, streaked 

 with black. Resident on Fla. Keys; rare; 

 possibly a color phase of last. 



]57. WARD HERON. 

 A little smaller than last, differs in 

 having lower parts more broadly streaked 

 with black, a lar^e black patch on sides of 

 breast, and the occiput with its plume and 

 sides of head, black, leaving middle crown 

 and forehead, white. Neck, yellow gray, 

 fig. 147. Young, with top of head dull slate; 

 neck, darker and back marked with reddish. 

 Resident in Fla., breeding in March. 



158. GREAT BLUE HERON. 



Smaller, 45, bill smaller, usually has 

 more black below. Breeds throughout entire 

 N. A. from the Arctic southward, excepting 

 at least middle and southern Fla., Bahamas 

 and W. I. nesting in high trees; goes south 

 from Sept. to Nov.; winters from N. C. to 

 northern S. A. ; occasionally as far north as 

 Mass.; north in March and April. 



