358 ICELAND OR JER FALCON. 



The lower parts in general are brownish-white, longitudinally patched 

 with dark brown, the central part of each feather being of the latter co- 

 lour. The under wing-coverts are similarly marked, as are the under 

 tail-coverts, which are alternately barred with brown and white. 



Length 22^ inches, extent of wings 4 feet 1 inch ; bill 1^*^ along the 

 ridge, 1 1 along the edge ; tarsus 2. 



The Female in the same state. Plate CXCVL Fig. 2. 



The above description applies in all particulars to the female, only 

 the two middle tail-feathers were spotted like the rest. 



Length 2 feet, extent of wings 4 ; bill l/^ along the ridge ; tarsus 2. 



It is remarkable that the female, although the heaviest and apparent- 

 ly the strongest bird of the pair, has the alar extent less by an inch than 

 that of the male, which she exceeds in length by 1 1 inches. 



