BRITISH BIRDS' NESTS. 91 



grey cream colour, smooth and unspotted. Size 

 about 3.0 by 2.0 in. 



Time. May and June. 



Remarks. Resident, with a more southern range 

 in winter. Note : a harsh kr, kr, kr. Love note 

 of male : ah-oo. Local and other names : St. 

 Cuthbert's Duck, Common Eider, Colk, Dunter 

 Duck. Sits very closely indeed. 



EIDER DUCK ON NEST. 



DUCK, PINTAIL. 



(Dafila acuta.) 

 Order ANSERES ; Family ANATID^: (DUCKS). 



Description of Parent Birds. Length about 

 twenty-seven inches, several of which are accounted 

 for by the abnormally long tail. Bill moderately 

 long, nearly straight, and dusky-black, leaden-grey 

 on the sides. Irides dark brown. Head and upper 

 part of neck in front, nape, and all back of neck 

 dark reddish-brown. The sides and back of head 



