BIRDS OF THE BRITISH ISLES. 255 



inches. The adult female is mostly uniform brown, with a 

 faint whitish patch between the base of the bill and eye ; 

 under parts, mottled wnth white. 



XoiiG^tailcb 2)uck. 



///V UuA/CArS 



The Long-tailed Duck {Fiiligiihi ghnialis, Linnaeus), a 

 tolerably common autumn and winter migrant to the 

 P>ritish Islands, is a circumpolar species, migrating in 

 autumn southward through both Ivastcrn and Western 



