BIRDS OF THE BRITISH ISLES. 



247 



with grey, with fine vermiculations of dark grey ; upper tail- 

 coverts, black ; speculum, grey ; under parts, greyish-white, 

 vermiculated with grey ; under tail-coverts, black ; irides, 

 red ; bill, black, showing a broad band of blue across the 

 centre ; legs and toes, bluish-grey ; w^ebs, black. Length, 

 about eighteen inches. The female has the chin whitish ; 

 head, neck, and breast, brownish. The remainder of 

 j)lumage shows more brown than in the male. 



1Rcb=^crc6tcb pocbarb. 



Thk Rcd-crestcd Pochard {/'u/r^u/a rufina, Pallas) is a 

 rare irregular winter migrant to the P>ritish Isles, and also 



