194 Mr. Ambrose A. Lane — Field-Xotes 



■where it bred during January and February in the marshes. 

 The length of an adult male is 18"5 inches, bill 2 to rictus, 

 tail 4. The iris is black ; the legs and feet bright slate- 

 grey ; the claws black. 



The female is perhaps slightly smaller. The bill is mostly 

 glaucous blue, with a line of black down the top of the 

 culmen, the tip also being black. 



The local name of this Duck is " Cherito." 



84. Dafila spixicauda (Vieill.). 



Dafila ftpinicauda, Salvad. B. M, C. xxvii. p. 279; Scl. 

 P. Z. S. 1891, p. 136. 



(Rio Pilmaiguen, Corral, and Rio Bueno.) 



This is the commonest representative of the Anatidse in 

 Chili, and probably occurs in every province. In the south 

 it is called " Pato comun," or "jergon-" (the common or 

 ugly duck) ; and in the highlands of Tarapaca the Bolivians 

 call it ^' Paspa.'" It occm'red here up to 12,000 feet. 



The male is larger than the female, an adult measuring 

 22 inches long, tail o'S, wing 10. The feet are of a dark 

 greyish drab. The end of the bill is black, and this colour 

 continues in a well-defined line along the upper surface to 

 the base of the culmen; the sides are a bright maize- 

 yellow. 



These Ducks are mostly migratory, but appeared as if 

 resident to a certain extent at Sacaya, where they breed 

 from October to February. The nest is placed amongst 



85. Mareca sibilatrix. 



Mareca sibilatrix, Salvad. B. M. C. xxvii. p. 236. 



(Rio Pilmaiguen.) 



This species I did not hear of north of Valdivia. It is 

 plentiful about the Chiloe Archipelago and adjacent main- 

 land; it is known as the " Pato real," which name is also 

 applied to Anas specuJaris. I did not meet any about Rio 

 Bueno until about February, and then observed them in 

 flocks by the Rio Pilmaiguen as if they had come from some 

 breeding-haunt. Their note is a Wigeon-like whistle. 



