206 BIRDS OF THE BRITISH ISLES. 



bluish ; cere, legs, and feet, yellow. Length, about twelve 

 inches. The female, which usually measures about three 

 or four inches more than the male, has the upper parts of 

 plumage brown ; spot on nape, white ; under parts, white, 

 tinged with grey, and having bars of brown. 



AMERICAN GOSHAWK. 



THE American Goshawk (Astur airicapillus, Wilson) is an 

 exceedingly rare abnormal autumn migrant to the British 

 Islands, and inhabits the Northern Nearctic Region. 

 During winter it is partially migratory. The adult of this 

 species closely resembles that of Astur palumbarius, but is 

 said to be darker on the head, and shows more grey on the 

 upper parts ; it is also finely freckled on the under parts, 

 and is not barred like the common goshawk. (P. 207.) 



