64 RESIDENTS AND MIGRANTS. 
The nest is recorded to have been found in Yorkshire, 
Norfolk, and on the borders of Herts and Bucks. 
FERRUGINOUS DUCK. Fuligula ferruginea* (Gmelin). 
A spring visitant, generally to the eastern counties 
of England, between the Thames and the Humber. 
The east of England would therefore appear to be 
the western limit of its regular migration, the few 
individuals which have been killed more to the west- 
ward being stragglers. Mr. R. Gray says, ‘‘ I know of 
but one instance of the occurrence of this bird in 
any part of Scotland;” and, according to Mr. Thomp- 
son it has not been obtained in Ireland f. 
SCAUP. uligula marila (Linneus). 
A winter visitant. Supposed to have nested in 
Sutherlandshire 9. 
The so-called American Scaup, Puligula mariloides, 
figured and described by Yarrell (Hist. Brit. Birds, 
vol. ili. p. 549), is now generally admitted to be no 
species, but a hybrid. The specimen figured by Mr. 
Yarrell belonged to Mr. Doubleday; and at the sale 
of that gentleman’s collection in August 1871, it was 
purchased by Mr. Bond, in whose possession it now 
remains. From an examination of this specimen, I have 
little doubt that it is a hybrid between the Pochard 
This Duck is also the “ Anas nyroca”’ of Gmelin. 
Birds of the West of Scotland, p. 385. 
Nat. Hist. Ireland (Birds), i. p. 134. 
Selby, “On the Birds of Sutherland,” Edinb. New Phil. Journ. 
vol. xx. p. 293. 
tt ® 
Wf 
