Carriker : List of the Birds of Costa Rica. 907 



Zonotrichia capensis costaricensis Allen, Bull. Am. Mus. Nat. Hist., Ill, No. 2, 

 Sept. 29, 1891, 375 (San Jose; Am. Mus. Nat. Hist.). 



U. S. Nat. Museum: Volcan de Turrialba, San Jose, Guayabo (Ridgway 

 and Zeledon), San Juan de Irazu (Ridgway and Alfaro), Coliblanco 

 (Ridgway), El Copey, Las Vueltas, and Santa Maria de Dota (Basulto), 

 Santa Maria (Zeledon), Cartago (Cooper), San Jose (Alfaro, Cherrie, 

 Underwood), Sabanilla, El Zarcero. 

 Bangs Collection: Irazu (Underwood). 



Carnegie Museum: Irazu, La Hondura, Ujurras de Terraba (Carriker). 

 Eleven skins. 



"Two of the birds taken in September at Ujurras de Terraba are in 

 juvenal plumage, while another is in the midst of the postnuptial moult, 

 which involves the body plumage only." (W. E. C. Todd.) 



Very common throughout the cultivated portions of the highlands, 

 ranging from 2,500 feet up to timber-line, but most abundant from 3,500 

 feet upwards. I found it breeding in great abundance on the Volcan de 

 Irazu at an elevation of 8,000 to 9,000 feet, the nests being placed on the 

 ground, usually under the side of an old log lying in a field or pasture, or 

 else in a clump of weeds or grass from one to three feet above the earth. 

 No nest was found with more than two eggs. The nest is rather loosely 

 built of fine dried grass-stems, lined with finer blades of grass and a little 

 thistle-down. Outside measurements, 80 X 50 mm. ; inside, 45 X 30 mm. 

 The eggs are pale cerulean-blue, finely speckled and dotted with purplish- 

 rufous in greater or less degree, some having only the larger end heavily 

 marked, while others are thickly speckled over the entire surface, but 

 always more heavily at the larger end. Measurements: 19.5 to 22 X 13.5 

 to 16 mm. 



744. Junco vulcani (Boucard). 



Zonotrichia vulcani Boucard, Proc. Zool. Soc. Lond., 1878, 57, pi. 4 (Volcan de 

 Irazii, Costa Rica, altitude 10,000 feet [coll. A. Boucard]). — Salvin and 

 Godman, Biol. Centr.-Am., I, 1886, 371, pi. 26, fig. 2. — Sharpe, Cat. Birds 

 Brit. Mus., XII, 1888, 602. 



Junco vulcani Ridgway, Proc. U. S. Nat. Mus., I, Dec. 10, 1878, 255 (summit of 

 Irazu; crit.). — Zeledon, Cat. Aves de C. R., 1882, 9; An. Mus. Nac. de C. R., 

 I, 1887, in (Volcan de Irazu). — Nutting, Proc. U. S. Nat. Mus., V, 1883, 

 495 (summit of Irazu; habits, etc.). — Ridgway, Birds of North and Mid. 

 Am., I, 1 901, 304 (Volcano of Irazu, Costa Rica, above timber-line [10,000 

 ft.]) — Carriker, Ann. Carnegie Museum, IV, 1908, 302 (Volcano Turrialba). 



U. S. Nat. Museum: Irazu (Ridgway, Alfaro and Zeledon), Las Vueltas 



de Dota (Basulto). 

 Bangs Collection: Irazu (Underwood). 



