Carrikkr : List of the Birds of Costa Rica. 403 



U. S. Nat. Museum: Bonilla (Ridgvvay), Jimenez (Alfaro). 



Bangs Collection : Tenorio, La Vijagua, Cachi, Cerro de Santa Maria 



(Underwood). 

 Fleming Collection : Cariblanco (Underwood). 

 Carnegie Museum : Guapiles, El Hogar, Cuabre, and Rio Sicsola 



(Carriker). Nine skins. 



Upon comparison of a good series of birds from Panama (true L. 

 cassini) with those from Honduras (Z. vinaceiventris), it becomes 

 evident at once that the northern bird is no more than a race of cassini. 

 All Costa Rican birds examined proved to be referable to the northern 

 form, some being not quite typical, while others could not be distin- 

 guished from birds from Honduras. 



Confined almost entirely to the Caribbean lowlands, from sea-level 

 up to about 3,000 feet, although some stragglers go higher. It is 

 most abundant, however, between 500 and 1,500 feet. It is also 

 occasionally to be met with on the Pacific slope in northern Guana- 

 caste, evidently crossing from one side to the other along the southern 

 shores of Lake Nicaragua. The habits of this species differ slightly 

 from other Costa Rican species of the genus, this bird, after the man- 

 ner of Geotrygon, keeping more to the thick forest, feeding on the 

 ground, and, when flushed, alighting in low trees and shrubbery. 



35. Leptotila rufinucha Sclater and Salvin. 



Leptoptila rufinucha Sclater and Salvin, Nomencl. Av. Neotrop., 1873, 133 and 

 162 (Veragua). — Salvadori, Cat. Birds Brit. Mus., XXI, 1893, 562 (Costa 

 Rica). — Salvin and Godman, Biol. Centr.-Am., Aves, III, 1902, 264 

 (Pacific lowlands, Pozo Pital, Tambor, Pirris [Underwood inlitt.\). — Bangs, 

 Auk, 1907, 292 (Boruca and El Pozo [Underwood]). 



Engyptila rufinucha, Zeledon, An. Mus. Nac. de C. R., I, 1887, 127 (Pozo 

 Azul). — Cherrie, Expl. Zool. en C. R., 1891-2, 1893, 53 (Palmar, Boruca, 

 Lagarto, and Buenos Aires). 



U. S. Nat. Museum: Trojas (Alfaro), Pigres (Zeledon). 

 Bangs Collection : El General de Terraba (Underwood). 

 Carnegie Museum : El Pozo, Boruca, and Buenos Aires (Carriker). 



Eight skins. 



Ranges over the southwestern part of the country, coming up from 

 Panama, and is most abundant in the Terraba Valley. It has been 

 taken more rarely upon the Pacific coastal plain as far as the head of 

 the Gulf of Nicoya. Zeledon records a specimen from Alajuela which 

 must have been a straggler, while I think there can be no doubt 



