164 



BIRDS OF THE REPUBLIC OF PANAMA PART 4 



bird returned. Generally, this species is seen on or a few feet above the 

 ground. The song suggests in pattern that of C. frantzii, but in Eisen- 

 mann's opinion, much inferior, being weaker, with a squeaky quality. 

 The nest and eggs are little known. Carriker (Ann. Carnegie Mus., 

 vol. 6, 1910, p. 745) described the egg of C. g. gracilirostris, the closely 

 similar subspecies of Costa Rica found on Volcan Irazu, as "blue, more 

 or less thickly speckled and dotted with reddish brown or deep chest- 

 nut, usually with a heavier wreath or cap of this color at the larger end, 

 though rarely speckled evenly over the entire surface. Measurements: 

 20.5 to 23x15 to 16 mm." 



CATHARUS GRACILIROSTRIS ACCENTOR Bangs 



Catharus gracilirostris accentor Bangs, Proc. New England Zool. Club, vol. 3, 

 January 30, 1902, p. 50. (Volcan de Chiriqui, 10,200 ft. (3140 m), Chiriqui, 

 Panama.) 



Characters. — Forehead gray, rest of upper surface light reddish 

 brown; band across breast paler than in bensoni. 



An adult male, caught at Volcan de Chiriqui, March 4, 1965, had 

 the iris dark reddish brown; thickened edge of eyelid fuscous-black; 

 bill black, with the tip of maxilla and of mandible on the inner side 

 dark slate; rest of inside of mouth, including tongue and gape, orange; 

 tarsus dull brown, paler on back on the plantar edge; claws fuscous- 

 black. 



Measurements. — Males (8 from Chiriqui), wing 71.2-78.4 (75.4), 

 tail 56.7-66.7 (61.9), culmen from base 15.1-17.0 (15.8, average of 7), 

 tarsus 30.9-33.4 (32.0) mm. 



Females (6 from Chiriqui), wing 70.8-74.8 (73.1), tail 54.6-62.2 

 (59.3), culmen from base 14.3-18.3 (15.8), tarsus 30.0-31.1 (30.5) 

 mm. 



Resident. Known from the highlands of western Chiriqui. In the 

 Smithsonian collections there are 2 males taken March 4 and 9, 1965, 

 to 2650 and 2700 m on the west face of Volcan de Chiriqui. A male and 

 female were collected also near Cerro Punta, March 12, 1962, by C. L. 

 Hayward. Blake (Fieldiana Zool., vol. 36, no. 5, 1958, p. 552) listed 

 4 males and 4 females in the Monniche collection from western Chiriqui 

 from Casita Alta, Peha Blanca, and Volcan de Chiriqui from 2040 to 

 3130 m, without other comment than the localities with date and eleva- 

 tion. (For this series he used the name Catharus gracilirostris gracili- 

 rostris. ) 



