OF THE HAMILTON ASSOCIATION. 163 



the hind head and nape cottony-white at base ; quills blackish, most of the 

 inner webs white, barred with dusky ; tail with three broad dark zones 

 alternating with narrow white ones, and white tipped ; conspiaiotis dark 

 maxillary patches ; under parts white or tawny, variously streaked, spotted 

 or barred with rusty or rufous, this color usually predominating in adult 

 birds, when the white chiefly appears as oval or circular spots on each 

 feather ; throat generally whiter than elsewhere, narrowly dark-lined. In 

 iheyoung the upper parts are duller brown, varied with white, the under- 

 parts tawny-whitish with linear and oblong dark spots, the tail grayish-brown 

 with numerous dark bars. Female, 18 ; wing, 11 ; tail, 7 ; male less. 



Hab. Eastern North America, from New Brunswick and the 

 Saskatchewan region to Texas and Mexico, and thence southward to Central 

 America, Northern South America and the West Indies. 



Nest in a tree, built of sticks and twigs, lined with grass and leaves. 



This species was first described by Wilson who met with 

 two individuals in the woods near the Schuykill, and does not 

 appear to have seen it again. 



In Southern Ontario the Broad- winged Hawk is often very 

 common in the spring. Toward the end of April or early in 

 May, should the weather be clear, great numbers are seen 

 soaring at a considerable height, and movirig in circles toward 

 the Northwest. 



About the same time, singly or in pairs, it may be met with 

 in the woods, usually sitting quietly on the lower branch of a 

 tree near some wet place, watching for frogs. A few pairs 

 remain during summer, but the greater number pass on to the 

 Northwest, and in winter none have been observed. 



Genus ARCHIBUTEO Brehm. 



ARCHIBUTEO LAGOPUS SANCTI-JOHANNIS (Gmel.). 



140. American Rough-le^gped Hii,Mrk. 347 a. 



Below, white, variously dark colored, and often with a broad black 

 abdominal zone ; but generally no ferruginous. Above, brown varying 

 from dark-chocolate in the adult to light umber in the young ; the back, 

 scapulars and shorter quills strongly cinereous. The head above more or 

 less white, dark streaked ; upper tail coverts and tail at base white, the 

 former tipped with blackish ; the latter barred near the tip with one, and 

 sometimes several bands of black or dark-brown. In this plumage the bird 



