FAMILY FRINGILLIDAE 



535 



(88.3), culmen from base 197-22.0 (21.0), tarsus 22.1-25.1 (23.9) 

 mm. 



Resident. Common in the lowlands of the Pacific slope from Chiri- 

 qui east to Code, where it begins to intergrade with iungens. It is also 

 found in southwestern Costa Rica. It has been collected up to 1800 m 

 in the highlands of western Chiriqui (Blake, Fieldiana: Zool., vol. 36, 

 no. 5, 1958, p. 569). Aldrich and Bole (Scient. Publ. Cleveland Mus. 

 Nat. Hist., vol. 7, 1937, pp. 22-23) found it common in the western 

 Azuero Peninsula of Veraguas about cultivated coconut groves, houses, 

 brushy savannas, and forest margins. 



All the nests known from Panama were found in the Canal Zone; 

 ones containing eggs have been found from April 1 to July 19. One 

 from Gatun was "a bulky compact cup set on a light base of sticks, 

 made of strips of banana leaves and plant bark and lined with brown 

 rootlets and vine tendrils." The two eggs were blue with a few spots 

 of black in a wreath near the larger end (Stone, Proc. Acad. Nat. Sci. 

 Philadelphia, vol. 70, 1918, p. 276). Skutch (Pac. Coast Avif. no. 31, 

 1954, p. 69) found that the clutch is always two. The average measure- 

 ments of 47 eggs were 27.5 X 19.2 mm. The eggs are incubated only by 

 the female and require 13 to 14 days to hatch. Both parents feed the 

 young, which usually remain in the nest 13 to 15 days. Skutch found 

 some young birds that were still being fed by their parents when 54 days 

 old. 



SALTATOR MAXIMUS IUNGENS Griscom 



Saltator maximus iungens Griscom, 1929, Bull. Mus. Comp. Zool., 69, p. 184. 

 (Cana, Darien, Panama.) 



Characters. — Differs from other Panama races by having black on 

 undersurface limited to sides of throat. 



Measurements. — Males (10 from Darien), wing 93.0-102.5 (97.9), 

 tail 88.0-100.8 (91.8), culmen from base 19.3-21.9 (20.9) , tarsus 24.3- 

 25.1 (24.7) mm. 



Females (8 from Darien and Colombia), wing 91.5-98.5 (95.3), tail 

 79.9-96.1 (87.8), culmen from base 20.5-23.4 (21.6), tarsus 23.1-25.3 

 (24.3) mm. 



Resident. Common in Darien and San Bias, intergrading with in- 

 termedins in eastern Province of Panama. I have collected it in Darien 

 at Jaque, Pucro, El Real, on Cerro Pirre at 450 m, and on the Rio 

 Jaque at Las Penitas. It is also found in western (Pacific slope) and 

 northwestern (Caribbean slope) Colombia. 



