Carriker : List of the Birds of Costa Rica. 435 



C. H. Lankester Collection : Bebedero. 

 Carnegie Museum : Bebedero (Carriker). 



To Mr. C. H. Lankester belongs the credit of first adding this duck 

 to the Costa Rican ornis, he having secured a specimen at Bebedero, 

 in June, 1906. As far as I am able to ascertain, these two birds are 

 the only ones which have ever been taken in Central America. A few 

 others were seen at Bebedero, but it was not common, and was seen 

 in company with D. autumnalis, in the lagoons about that place. 



106. Dendrocygna autumnalis (Linnaeus). 



(Native name " Pichi.") 



Anas autumnalis Linnaeus, Syst. Nat., ed. 10, I, 1758, 127. 



Dendrocygna autumnalis Eyton, Monogr. Anat., 1838, 109. — Lawrence, Ann. 

 Lye. N. Y., IX, 1868, 143 (Gulf of Nicoya, Coll. O. Salvin). — Frantzius, 

 Jour, fur Orn., 1869, 379 (Guanacaste). — Sclater and Salvin, P. Z. S., 

 !876, 374 (Gulf of Nicoya [Arce]). — Boucard, P. Z. S., 1878, 44 (Laguna 

 at El Alto). — Richmond, Proc. U. S. Nat. Mus., XVI, 1893, 530 (Rio 

 Frio, common). — Underwood, Ibis, 1896, 450 (Miravalles to Bebedero). 



Dendrocygna autumnalis NUTTING, Proc. U. S. Nat. Mus., V, 1882, 408 (La 

 Palma de Nicoya). — Salvadori, Cat. Birds Brit. Mus., XXVII, 1895, 159 

 (Nicoya [Arce]). — Salvin and Godman, Biol. Centr.-Am., Aves, III, 1902, 

 205 (references cited). 



C. H. Lankester Collection : Palo Verde. 



Carnegie Museum : Bebedero (Carriker). Six skins. 



Very abundant over the whole valley of the Tempisque River, but 

 very scarce elsewhere. The only record I know for the interior of 

 Costa Rica is that of Boucard (Laguna de Ochomogo) , which is without 

 question correct. Mr. Cherrie did not record it from the Terraba 

 region, Mr. Underwood did not find it there, nor did I see a single 

 bird anywhere in the delta of the Rio Grande, although conditions 

 seemed favorable for them there. Evidently they are partial to the 

 grassy lagoons of the " sabanas ' ' of Guanacaste. It is easily domesti- 

 cated and is to be seen about most of the houses of that region, 

 toddling about in a string just like ordinary domestic ducks. They 

 go off to the lagoons during the day to feed and swim, but always 

 return. 



107. Dafila acuta (Linnaeus). 



Anas acuta Linnaeus, Syst. Nat., ed. 10, I, 1758, 126. 



Dafila acuta Bonaparte, Comp. List, 1838, 56. — Lawrence, Ann. Lye. N. 

 Y., IX, 1868, 143 (San Jose [M. Calleja]). — Frantzius, Jour, fur Orn., 

 1869, 378 (Cartago). — Sclater and Salvin, P. Z. S., 1876,392 (Lawrence's 



