The True Ducks. 169 



of more or less importance, which may 

 here be noticed. 



THE TEAL (Nettium). The bill is of 

 uniform width throughout. The male 

 has the head banded with brilliant 

 colours ; the scapulars and inner second- 

 aries lengthened, pointed and distinctively 

 coloured. The speculum, composed of 

 black and green, is the same in both 

 sexes. 



THE GARGANEYS (Querquedula). The 

 bill is rather wider near the tip than at 

 the base. The male is not brilliantly 

 coloured, and differs from the males of 

 all the other True Ducks in not having 

 the under tail-coverts black. The scapu- 

 lars in the male are long, pointed and 

 distinctively coloured. The speculum is 

 not very dissimilar in the two sexes. 



THE FALCATED DUCKS (Eunettci). The 

 bill is of equal width throughout. The 

 male has the head brilliantly coloured ; 

 the inner secondaries long, narrow and 

 sickle-shaped (falcated) ; and the lower 

 and upper tail-coverts long, reaching to 

 the tip of the tail. Both sexes have the 

 speculum quite the same, and both have 

 a conspicuous crest. 



THE WIGEONS .(Mareai). The bill is 



