400 Annals of the Carnegie Museum. 



U. S. Nat. Museum: Pigres (Ridgway), Puntarenas. 



C. H. Lankester Collection : Cachi. 



Carnegie Museum: Miravalles, El Pozo, Boruca (Carriker). Five 



skins. 



Much less common in Costa Rica than C. passerina neglecta, and 

 seems to be confined chiefly to the lowlands of the Pacific, around 

 the Gulf of Nicoya and in the Terraba Valley, being abundant in the 

 latter region. There are few records of its occurrence in the interior, 

 although Boucard took it at Orosi and Lankester at Cachi, localities 

 near to each other at an altitude of about 2,500 feet in the valley of 

 the Rio Reventazon. 



It was very common at all points visited in the Terraba region 

 (except Ujurras) frequenting the grass-grown shores of the Rio Grande 

 in company with Claravis preliosa, and it was a common sight to see 

 small flocks of them about the houses in Boruca and Buenos Aires. 

 Their food seems to consist chiefly of the seeds of grass and weeds. 



30. Claravis pretiosa pretiosa (Ferrari-Perez). 



Peristera pretiosa Ferrari-Perez, Proc. U. S. Nat. Mus., IX, 1886, 175 (Jalapa, 

 Mexico; crit. ). 



Peristera cinerea Lawrence, Ann. Lye. N. Y., IX, 1868, 138 (Gulf of Nicoya ; 

 coll. of O. Salvin). — Frantzius, Jour, fiir Orn., 1869, 371 (Nicoya). — 

 Zei.edon, An. Mus. Nac. de C. R., I, 1887, 127 (Las Trojas, Alajuela, San 

 Jose, Naranjo de Cartago). — Cherrie, Auk, IX, 1892, 329 (San Jose, 

 tolerably common resident). — Salvadori, Cat. Birds Brit. Mus., XXI, 1893, 

 491 (La Barranca [Arce], Costa Rica [J. Carmiol]). — Underwood, Ibis, 

 1896, 447 (Miravalles; few seen). — Salvin and Godman, Biol. Centr.- 

 Am., Aves, III, 1902, 255 (Miravalles, Laguna de Cartago, Talamanca, Tres 

 Rios, Turrialba [Underwood]). 



Claravis preliosa Oberholser, Pr. Acad. Nat. Sci. Phila., 1899, 203 (crit.). 



Claravis preliosa pretiosa Bangs, Auk, XXIV, 1907, 292 (Boruca, Paso Real, and 

 El Bozo de Terraba [Underwood] ). 



U. S. Nat. Museum : Bonilla (Ridgway) (Basulto), Pigres (Ridgway 

 & Zeledon), San Sebastian de San Jose, Laguna de Cartago; Tala- 

 manca (Cherrie), San Jose and Alajuela (Alfaro). 

 Fleming Collection : La Estrella de Cartago (Underwood). 

 Bangs Collection : Pozo Azul de Pirris (Underwood). 

 Carnegie Museum : San Jose, Guapiles, El Hogar, El Pozo de Terraba 

 (Carriker). Thirteen skins. 



A series of Costa Rican birds differ among themselves in the num- 

 ber and size of the black spots on the wings, some being very heavily 



