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There is also another Goose which 

 has been recorded from this part of 

 China : — 



Cygnopsis (or Anser) cygnoides (L.), 

 Swan Goose. 



Snb-faanily, Anatlnae, River Ducks. 



The ducks of this subJamly are 

 marked by the absence of a^Jobe on 

 the hind toe. Another characteristic 

 is their habit of tipping up to feed like 

 the domestic duck. Their food is 

 chiefly mollusks, crustaceans, insects 

 and their larvae, seeds and roots of 

 aquatic plants. 



They are for the most part northern 

 breeding birds, only one of the species 

 recorded from the Yangtse Valley 

 being known to nest here (The Yellow 

 Nib Duck, P. zonorhyncha). 



MALLAED DUCK. 



ANAS PLATYEHYNCHOS. Cl) 



(A. boschas L.) 



Description. — Length of male 26 

 inches, female 22 inches. 



Male. — Bill greenish. Iris dark 

 brown. Legs orange. Head and 

 upper-neck brilliant irridescent green 

 with a narrow white collar. Upper 

 back chestnut brown, lower back 

 black. Upper breast chestnut brown. 

 Abdomen greyish white. The outer 

 websof thesecondaries form a speculum 

 of rich purple edged with black. 

 Upper and under tail coverts black. 



Fe^nale. — Bill yellowish-orange with 

 a black naU. Legs yellowish- 

 orange. The whole plumage is yellow 

 or light brown streaked with darker. 

 The speculum is green above, black 

 below, and edged with white. 



