330 BIRDS OF THE REPUBLIC OF PANAMA PART 4 



Resident. Uncommon to fairly common in the lowlands and foot- 

 hills of both slopes from east of the Canal Zone to the Colombian 

 border. I have found it as high as 1260 m, on the south fork of the Rio 

 Pucro, Cerro Mali, Darien. 



ZELEDONIA CORONATA Ridgway: Zeledonia, Zeledonia 



Figure 26 



Zeledonia coronata Ridgway, 1889, Proc. U.S. Nat. Mus., 11 (1888), p. 538. 

 (Laguna del Volcan de Poas, Costa Rica.) 



Small; center of crown orangey brown, margined by black; rest of 

 upper surface brownish olive; forehead, sides of head, and undersur- 

 face slaty. 



Description. — Length 100-110 mm. Adult (sexes alike), center of 

 crown orangey brown, bordered by narrow black stripe; forehead and 

 side of head dark slate gray; rest of upper surface brownish olive; 

 undersurface slaty gray; flanks and undertail coverts dull olive; 

 remiges and rectrices dark brown, edged brownish olive. 



Juvenile, like adult, but lacks crown patch; underparts olive. 



Measurements. — Males (10 from Veraguas, Chiriqui, and Costa 

 Rica), wing 61.5-69.5 (65.8), tail 36.3-42.3 (38.8), culmen from base 

 11.7-13.5 (12.8, average of 9), tarsus 26.1-30.9 (28.7) mm. 



Females (10 from Veraguas and Costa Rica), wing 61.0-68.0 (62.9), 

 tail 33.3-38.8 (35.8), culmen from base 11.8-13.9 (12.7), tarsus 26.2- 

 29.5 (27.7) mm. 



Resident. Rare and local in the highlands of Chiriqui and Veraguas, 

 where it inhabits very humid forests with thick ground cover. It has 

 been recorded in Chiriqui between 1740 and 3090 m and in Veraguas at 

 Chitra from 1050 to 1200 m (Ridgely, 1976, p. 305). In Chiriqui it 

 has been collected on the Volcan de Chiriqui and at Boquete. Ridgely 

 heard and briefly saw one in cloud forest well above Fortuna ( 1800 m) 

 in central Chiriqui on February 27, 1976, and N. G. Smith reports (in 

 litt. to Eisenmann) seeing one on Cerro Colorado, eastern Chiriqui, in 

 April, 1979. The Zeledonia is also found in Costa Rica. 



The systematic position of Zeledonia coronata was formerly the sub- 

 ject of considerable uncertainty. It was thought, on quite inadequate 

 grounds, to be related to thrushes, although equivocation resulted in 

 its being placed in a monotypic family Zeledoniidae. Sibley (Postilla, 

 no. 125, 1968, pp. 1-12), after a review of its taxonomic history and an 

 analysis of the electrophoretic pattern of its egg-white proteins, con- 

 cluded that this species is not a thrush, but probably a parulid, on the 



