CHAPTER XXVIII. 



RING-NECKED DUCK (fULIGULA RUFITORGUES). 



Local names, "Ring-billed Duck," " Tufted Duck," and " ixolden. 

 eyes" (last very common, but erroneous). 



Adult male : Bill about the same length as 

 the head, rather deeper than broad at the base, 

 depressed and enlarged towards the end, the frontal 

 angles acute. 



Head of moderate size. Neck rather long and 

 slender. Body full and depressed. Wings rather 

 small. Feet very short, strong, placed rather far 

 behind; tarsus very short. 



Plumage dense, soft, blended, rather glossy. 

 Feathers of the middle of the head and upper 

 part of hind neck very narrow and a little elon- 

 gated ; the rest of the head and upper part 

 of the neck very short; of the back and lower 

 parts in general broad and rounded. Wings of 

 moderate length, narrow, acute. Tail very short, 

 rather broad, much rounded, of sixteen rounded 

 feathers. 



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