13 



r < 

 GYRFALGO, SHAW. 



F. FMCUS, subalbido variatus, subtus albidus maculis 

 fuscis, caudafasciis numerosis fuscis. Shaw. 



The bill is much hooked, yellow; irides dusky ; the 

 plumage is white, marked with dusky lines and spots; 

 the breast and belly are marked with lines pointing 

 downwards ; the wings are marked with large heart- 

 shaped spots ; the legs are pale blue, and feathered 

 below the knees. 



Var : white, or brown above, and white below. 



This species rarely visits Scotland and the Ork- 

 neys. 



It will attack the largest birds. 



15. CYANEUS. Mas. HEN-HARRIER. 

 PYGARGUS. Fern. RIXG-TAIL. 



F. Albo-c&rulescens, collari subrigente albofuscoque 

 vario, remigibus fuscis. Shaw. 



Male. The bill is black, covered with bristly fea- 

 thers at the base ; the cere, irides and edges of the 

 bill yellow ; the upper parts are bluish grey, mixed 

 with light tinges of rusty; the breast and under coverts 

 of the wings are white, the former marked with rust 

 coloured streaks, the latter with bars of the same 

 colour. The greater quills are black, the secondaries 

 and lesser quills are ash-coloured ; the two middle 



