900 Annals of the Carnegie Museum. 



Carnegie Museum: Tierra Blanca, Volcan de Irazii, Volcan de Turrialba, 

 Juan Vinas, Ujurras de Terraba (Carriker), San Pedro del Mojon, and 

 San Jose (Underwood). Eleven skins. 



Confined entirely to the highlands, being rarely seen below 2,000 feet, 

 not going above 8,000 feet, and most abundant between 3,000 and 6,000 

 feet. They frequent the cleared lands, bushy pastures, and the fringes 

 of open woodland, keeping in the bushes and low trees. After the breeding 

 season they are seen in small flocks of from three to six and at such times 

 are rather noisy, but are always very shy and difficult to approach in the 

 open. No nests were observed. 



736. Lysurus crassirostris (Cassin). 



Bnarremon crassirostris Cassin, Proc. Ac. Nat. Sci. Phila., Aug., 1865, 170 (Bar- 

 ranca, 1 April 14, 1864 [J. Carmiol], U. S. Nat. Mus.). — Lawrence, Ann. 

 Lye. N. Y., IX, 1868, 101 (Barranca [J. Carmiol]). — Frantzius, Jour, fur Orn. 

 1869, 300. — Zeledon, Cat. Aves de C. R., 1882, 8; An. Mus. Nac. de C.R., 

 I, 1887, no (Rio Siicio). — Salvin and Godman, Biol. Centr.-Am., Aves, I, 

 1884, 323 (Barranca [Carmiol]). — Sclater, Cat. Birds Brit. Mus., XI, 1886, 

 262 (Buena Vista 2 [Carmiol]). — Ridgway, Proc. U. S. Nat. Mus., XV, 1888, 

 540 (Rio Siicio [J. Cooper], crit.). 

 Lysurus crassirostris Ridgway, Birds North and Mid. Am., I, 1901, 458 (high- 

 lands of Costa Rica [Barranca, Buena Vista, Rio Siicio, etc.]). 

 U. S. Nat. Museum: La Lagunaria de Dota (Basulto), La Hondura (Al- 



f aro) . 

 Bangs Collection: Carrillo, La Hondura, Cariblanco (Underwood). 

 C. H. Lankester Collection: Cachi. 



Carnegie Museum: La Hondura and Volcan de Turrialba (2,500 feet) 

 (Carriker), Cariblanco de Sarapiqui, La Hondura (Underwood). Nine 

 skins. 



"In a young bird (25346, Cariblanco, Aug. 2, 1899), just entering upon 

 the postjuvenal moult, the general color above is darker, more reddish- 

 brown than in the adult, the crown clove-brown, with a few rufous feathers 

 appearing; sides of the head dull dusky-olive, not sharply contrasted 



^here is no doubt in my mind that this "Barranca" is the one which Frantzius 

 refers to as being "An den Qucllen der Barranca, nordlich von San Ramon" (Jour, 

 fur Orn., 1869, 316) and again "in dem kiihlen, Klima an der Barranca" (Jour, 

 fiir Orn., 1869, 308). There is a Rio Barranca, a tributary of the Rio Grande de 

 Tarcoles, which rises on the southwestern slope of the Volcan de Poas, and which is 

 most likely the one referred to. 



2 Buena Vista is on the trail from Grecia down the San Carlos valley and lies 

 about fifteen miles northwest of Grecia. 



