OF NEW ENGLAND. 365 



less very seriously molested, they build their nest every year 

 in nearly the same place. The females vary as regards cour- 

 age or prudence, some leaving their nest on hearing one's 

 approach, others waiting till the tree is rapped, and others 

 until one has begun to climb or has even ascended several 

 feet. I have never known them to attack man, when thus 

 disturbed. The young are fed for several weeks after being 

 hatched, and are often noisy. 



(d). The screams of our two u Hen Hawks" do not materi- 

 ally differ, if at all. They are slightly prolonged, and are 

 usually repeated several times at once, as kee-o, kee-o, kee-o. 

 They are frequently heard, especially in spring, but are exactly 

 imitated by the Blue Jays. 



(C) PENNSYLVANICUS. Broad-winged Hawk (or Buzzard). 



(To be seen in Massachusetts during summer, and occasion- 

 ally winter, but more common as a migrant.) 



(a). Eighteen inches long or less. Above, umber-brown, 

 with more or less pale Edging, and showing white on the hind- 

 head. Tail banded and tipped with white. Under parts, 

 white, variously streaked and barred with spots of medium or 

 rufous brown, of which traces are often found above. Throat 

 bordered on each side by a dark maxillary patch. Young with 

 much white above, but that of the tail replaced by light brown. 



This species, like the other buzzards, has the outer primary 

 (and others) emarginate, i. e. with the inner web rather ab- 

 ruptly narrow towards the end. This buzzard has three, our 

 others four emarginate. 



(b). The nest does not essentially differ, so far as I know, 

 from that of the Red-shouldered Hawk. An egg, which I took 

 from a nest with three young, found near Boston on the six- 

 teenth of May, measures 2-10 X 1'80 of an inch, and is white, 

 blotched and spotted with brown, chiefly of a purplish shade. 



(c). The Broad-winged Buzzards are reported as common 

 summer-residents in many parts of northern New England. 

 In Massachusetts, they are most common as migrants, but I 

 have seen one in winter, and have found two nests near Boston, 



