Carriker : List of the Birds of Costa Rica. 879 



Of the four specimens taken (one at El Hogar and three at Juan Vinas) 

 but one of the birds from Juan Vinas shows any signs of a jugular collar, 

 and all have the sides of the head and foreneck clear gray. These birds 

 frequent wooded pastures, edges of forests, coffee-plantations and shrub- 

 bery. They are very gregarious, and are almost always seen in flocks of 

 from four to eight or ten, are very noisy, and are exceedingly shy and hard 

 to approach. The note is rather harsh and loud, but with a slight musical 

 quality lacking in the other Costa Rican species of the genus. 



708. Caryothraustes poliogaster poliogaster (Du Bus). 



Pitylus poliogaster Du Bus, Bull. Ac. Roy. Belg., XIV, pt. 2, 1847, 105 (Guate- 

 mala; Brussels Museum). 



Carnegie Museum: Carrillo, Aug. 23, 1905, two specimens (Carriker), 



Nov. 17, 1898, one d 71 (Underwood). Three skins. 



"Three specimens from Carrillo must be referred to this form, agreeing 

 well with British Honduras birds both in color and measurements, and 

 differing thus from other individuals taken at the same time and place. 

 They are, however, somewhat brighter yellow underneath than the birds 

 from British Honduras." (W. E. C. Todd.) 



Mr. Ridgway states (Birds of North and Middle America) that this 

 form does not extend south of Honduras, but the specimens above cited 

 show that the ranges of the two forms overlap for some distance. Thus 

 far the present variety has been taken only at Carrillo, in northeastern 

 Costa Rica. The bird is a denizen of the thick forests of the Caribbean 

 slope at an altitude of from 800 to 2,000 feet, but is not abundant. It is 

 usually seen in small flocks in company with other finches and tanagers 

 which frequent such localities. It is rather quiet, keeping low down, 

 being often flushed from the ground, and is never seen in high trees or 

 in the open forests. (The above remarks really refer more to the following 

 subspecies than to the present.) 



709. Caryothraustes poliogaster scapularis (Ridgway). 



Pitylus poliogaster (not of Du Bus) Sclater and Salvin, Proc. Zool. Soc. Lond., 

 1864, 352 (Lion Hill, Panama Railroad). — Lawrence, Ann. Lye. N. Y., 

 IX, 1868, 102 (Angostura [J. Carmiol]). — Salvin and Godman, Biol. Centr.- 

 Am., Aves, I, 1884, 333, part (Angostura [Carmiol], Tucurriqui [Arce]). — 

 Sclater, Cat. Birds Brit. Mus., XI, 1886, 307, part (Tucurriqui [Arce]). 



P[itylus] poliogaster Sclater and Salvin, Exotic Orn., pt. XI, 1869, 168 (C. R.). 



Pitylus poliogaster scapularis Ridgway, Proc. U. S. Nat. Mus., X, Aug. 6, 1888, 

 586 (eastern Nicaragua). — Zeledon, An. Mus. Nac. de. C. R., I, 1887, 111 



