538 BIRDS OF THE REPUBLIC OF PANAMA PART 3 



Description. — Length 105-115 mm. Male, crown and upper hind- 

 neck ohve ; sides of head, back, and lesser wing coverts olive-brown ; 

 greater coverts, wings, and tail fuscous, edged with cinnamon ; rump 

 and upper tail coverts dull cinnamon ; sides, including sides of neck, 

 dull greenish olive ; central under surface dull yellow, whiter on the 

 throat, and washed with greenish olive across the breast ; edge of 

 wing, outer under wing coverts, flanks, tibia, and under tail coverts 

 dull cinnamon. 



Female, similar, but with back and sides dull bufify brown. 



Measurements. — Males (7 from Cerros Pirre and Tacarcuna), 

 wing 55.8-57.7 (56.5), tail 41.2-46.2 (43.8), culmen from base 

 12.7-13.6 (13.0, average of 5), tarsus 20.0-21.6 (20.6) mm. 



Females (3 from Cerros Pirre and Tacarcuna). wing 52.3-54.0 

 (53.4), tail 38.1-41.2 (39.7), culmen from base 12.^13.0 (12.7), 

 tarsus 19.2-20.8 (20.1) mm. 



Resident. Subtropical Zone forests on Cerro Pirre (1375 and 

 1585 meters), and Cerro Tacarcuna (1250 meters), Darien. 



A specimen in the American Museum of Natural History from 

 the eastern slope of Cerro Tacarcuna at 1400 meters on the head- 

 waters of the Rio Cuti, taken by Anthony and Ball, April 7, 1915, 

 extends the range on the Colombian side of the international boundary 

 to northern Choco. 



Goldman, who secured the type series, found these birds in low 

 undergrowth in the dark forest of the summit of Cerro Pirre. The 

 several seen attracted attention by "a slight snapping noise." Two of 

 his specimens were taken in the lower levels of steep quebradas, and 

 one on the summit of a high ridge. In 1964, on Cerro Tacarcuna, we 

 collected four, all captured in mist nets set across a small channel on 

 the upper Rio Pucro at 1250 meters elevation. They were rather 

 heavy-bodied in the hand, with long and prominent rictal bristles, 

 fairly long tarsi, and long, curved claws. The suggestion by Chapman 

 (Bull. Amer. Mus. Nat. Hist., vol. 36, 1917, p. 411) under the 

 nominate race pehelni, that because of the long tarsi this species "is 

 more or less terrestrial," seems doubtful. It is more probable that 

 they live in the lower levels of undergrowth, near the ground. 



The race berlepschi, (distinguished from typical P. p. pelzelni of 

 the eastern Andes in Colombia and Ecuador by larger bill, darker, 

 more olive, less greenish color above, with the outer webs of remiges 

 and rectrices brighter cinnamon, and the under tail coverts cinnamon- 

 buff) ranges south in the western Andes of Colombia to northwestern 

 Caldas. 



There is no record of the nest and eggs. 



