4 6 



BRITISH BIRDS. 



THE HEN-HARRIER. 



DOVE-COLOURED FALCON, OR BLUE HAWK. 



(Falco Cyaneus, Mont. Busard St. Martin, Temm.) 



LENGTH eighteen inches ; breadth somewhat 

 more than three feet. The bill is black, and 

 covered at the base with long bristly feathers ; 

 cere, irides, and edges of the eyelids yellow : the 

 upper parts bluish grey, mixed with light tinges of 

 rusty ; the breast and under coverts of the wings 

 white, the former marked with rusty-coloured 

 streaks, the latter with bars of the same ; the 

 greater quills are black, the secondaries and 

 lesser quills ash grey; the two middle feathers 

 of the tail are grey, the rest are marked on their 

 inner webs with dusky bars ; the legs are long, 



