538 



BIRDS OF THE REPUBLIC OF PANAMA PART 4 



A male collected at El Cope, Code, on February 23, 1962, had the 

 iris mouse brown; bill black; tarsus and toes light olive-brown; claws 

 dark neutral gray. A female taken at Nueva Gorgona, Province of 

 Panama, on March 17, 1951, had the iris drab; tip of maxilla and edge 

 of gape honey yellow, becoming ivory on base of maxillary tomium; tip 

 of mandible dull ivory-white; rest of bill dull black; tarsus and toes dull 

 grayish olive; margin of upper eyelid antimony yellow; margin of 

 lower eyelid dull greenish. 



Measurements. — Males (10 from Panama) , wing 86.2-94.5 (91.8), 

 tail 79.7-88.7 (84.0), culmen from base 18.4-20.0 (19.0), tarsus 22.6- 

 24.2 (23.4) mm. 



Females (10 from Panama), wing 84.4-89.0 (87.0), tail 79.5-84.5 

 (81.1), culmen from base 17.7-21.0 (19.3), tarsus 22.9-24.4 (23.3) 

 mm. 



Resident. Very common on the Pacific slope from Veraguas, where 

 it has been collected as far west as Sona, San Francisco, and Santa Fe, 

 east to the Rio Chepo in eastern Province of Panama (Griscom, Bull. 

 Mus. Comp. ZooL, vol. 78, 1935, p. 380), and on the Caribbean slope in 

 the Canal Zone area and at Mandinga, western San Bias, where I found 

 it in 1957. Aldrich and Bole (Scient. Publ. Cleveland Mus. Nat. Hist., 

 vol. 7, 1937, p. 13) found it common on the western Azuero Peninsula 

 of Veraguas. Two specimens from Isla Cebaco, off the Azuero Penin- 

 sula, are not separable from mainland birds. 



This race has been found breeding from April 7 (Hallinan, Auk, 

 1924, p. 321) to August (Arbib and Loetscher, Auk, 1935, p. 327). 

 Five nests found in the Canal Zone by Hallinan and Major General G. 

 Ralph Meyer were placed from 1.3 to 4 m from the ground in a bush or 

 tree. The nest is a cup made of weed stems, vine tendrils, rootlets, 

 twigs, dry grass, and leaves, lined with finer material. The outside 

 diameter is about 10 cm. All of the nests held two eggs; the eggs of 

 one clutch measured 25.3 X 17.1 and 26.1 X 17.2 mm. The eggs are light 

 blue with fine blackish scrawls near the larger end. 



SALTATOR ALBICOLLIS SCOTINUS Wetmore 



Saltator albicollis scotinus Wetmore, 1957, Smiths. Misc. Coll., 134 (9), p. 98. 

 (Isla Coiba, off Veraguas, Panama.) 



Characters. — Darkest of the subspecies of S. albicollis; similar to 

 S. a. isthmicus, but darker, grayer green above; sides of head and 

 streaks on lower surface definitely darker; sides of breast darker; edge 

 of wing brighter yellow; undertail coverts slightly deeper buff. 



