1 8 PATAGONIAN EXPEDITIONS I ZOOLOGY. 



(Lower Pilcomayo); Holland, t. c. p. 214 (Estancia Espartilla); 

 Aplin, Ibis, 1894, p. 212 (Uruguay); Salvad. Cat. B. Brit. Mus. 

 XXVII. p. 548 (1895); Sharpe, Hand-list B. I. p. 10 (1899); Gates, 

 Cat. Bds. Eggs, Brit. Mus. I. p. 12 (1901). 

 Nothurus rufescens, Swains. Classif. B. II. p. 345 (1837). 



FIG. 10. FIG. ii. 



Rhynchotus rufescens. Profile. Rhynchotus rufescens. Bill and head 



J^ natural size. from above. ^ natural size. 



GENERAL DESCRIPTION. 



Size. Total length, 1417 inches. 



Wing, 8-9 inches. 



Tail, 2.5-2.75 inches. 



Culmen, 1.6-1.7 inches. 



Tarsus, 2.32.5 inches. 



The female is larger than the male. 



Color. Head: Crown and forehead black, the feathers edged generally 

 with buffy rufous. Remainder of head buff with a dusky stripe extend- 

 ing from angle of mouth to the region of the ear. The female is more 

 intense in shade of color and definite in barring than the male. 



Throat : Pale buff, almost white. 



Neck : Creamy buff with a rufous tinge. 



