Carriker : List of the Birds of Costa Rica. 731 



also took a good series at La Vijagua, on the Caribbean slope. It is found 

 only in the heavy virgin forest, preferring cool humid conditions. It 

 perches rather low down among the lower limbs of the trees and in the 

 undergrowth, catches its food on the wing, and has a very peculiar, shrill, 

 penetrating note, not loud, yet heard for some distance and very different 

 from that of any other bird which I have ever heard. 



502. Todirostrum schistaceiceps Sclater. 



Todirostrum schistaceiceps Sclater, Ibis, 1859, 444 (Oaxaca, Mexico). — Zele- 

 don, Proc. U. S. Nat. Mus., VIII, 1885, 108 (Costa Rica); An. Mus. Nac. de 

 C. R., I, 1887, 116 (Costa Rica). — Sclater, Cat. Birds Brit. Mus., XIV, 

 1888, 74 (Mexico to Venezuela). — Salvin and Godman, Biol. Centr.-Am., 

 Aves, II, 1888, 13 (no C. R. specimens). — Cherrie, Expl. Zool. en C. R., 

 1890-1, 31 (Boruca and Buenos Aires). — Ridgway, Birds N. and Mid. 

 Amer., IV, 1907, 367 (Rio Frio, Guaitil, and Pozo Aziil de Pirris). — Bangs, 

 Auk, XXIV, 1907, 300 (Boruca, Paso Real, and El Pozo de Terraba [Under- 

 • wood]). 



Bangs Collection: Pozo Azul de Pirris, Guaitil, Miravalles, La Vijagua, 



Coralillo, Bolson, Tenorio, Buenos Aires, and El General de Terraba 



(Underwood). 

 Carnegie Museum: Pozo Aziil de Pirris, Buenos Aires, Boruca, El Pozo 



de Terraba, Esparta, San Mateo, Bebedero (Carriker). Seventeen 



skins. 



This species is confined almost entirely to the Pacific coast region, up 

 to about 2,000 feet, with the exception of the eastern slope in the extreme 

 northern part of the country, where the bird crosses the low continental 

 divide at the boundary line between Costa Rica and Nicaragua and passes 

 down the eastern slope as far as the Rio Frio. Underwood took several 

 specimens at La Vijagua, on the eastern watershed. The bird is most 

 abundant in the southwestern region, from Puntarenas south, especially 

 in the Terraba Valley. Its habits are very similar to those of T. cinereum, 

 except that it is oftener found in thick woodland, but never in heavy virgin 

 forest. I did not find any of the nests, nor did I see any nest in the Ter- 

 raba Valley resembling that of T. cinereum, so that evidently this species 

 does not build that type of a nest. 



503. Todirostrum nigriceps Sclater. 



Todirostrum nigriceps Sclater, P. Z. S., 1855, 66, pi. 84, fig. 1 (Santa Marta, 

 Columbia). — Lawrence, Ann. Lye. N. Y., IX, 1868, no (Angostura [J. 

 Carmiol]). — Frantzius, Jour, fiir Orn., 1869, 307 (Costa Rica). — Sclater, 

 Cat. Birds Brit. Mus., XIV, 1888, 72 (no C. R. specimens). — Salvin and 



