414 BIRDS OF THE REPUBLIC OF PANAMA PART 2 



Puerto Armuelles, Chiriqui, had the iris dark reddish brown ; thick- 

 ened edge of eyelid and bare skin above eye grayish blue ; maxilla and 

 tip of mandible light greenish yellow ; rest of mandible darker 

 grayish yellow-green. 



A female, taken February 15, 1959, at Boca de Paya, Darien, 

 had the iris dark brown ; base of maxilla and mandible light green ; 

 rest of mandible dull black; thickened edge of eyelid light blue; 

 tarsus and toes neutral gray, claws dark neutral gray, all except 

 the fourth tipped with light brownish white. Another collected 

 February 8, 1962, at Canita, Panama, had the thickened eyelid 

 grayish blue ; culmen and maxilla to the nostril dull black ; rest of 

 bill green, tinged with yellow on tip of mandible and cutting edge. 



Measurements. — Males (18 from Panama), wing 102.9-113.5 

 (108.9), tail 123.8-134.9 (129.0), culmen from base 16.4-18.7 (17.6), 

 tarsus 13.2-14.7 (13.8) mm. 



Females (15 from Panama), wing 104.0-114.8 (110.1), tail 

 126.7-137.8 (131.6), culmen from base 16.3-18.5 (17.3), tarsus 

 13.1-14.4 (13.5) mm. 



Resident. Fairly common in forested areas in the tropical low- 

 lands throughout the Republic. Found to 750 meters on the Rio 

 Changuena, Bocas del Toro, to 850 meters on Cerro Campana, and 

 to 600 meters on Cerro Bruja and Cerro Pirre. In Darien it has been 

 found on Cerro Sapo, at Boca de Paya, and on Cerro Pirre, but 

 I did not record it on the Rio Jaque. 



This is one of the more common trogons, found like others of 

 its family only in forest, but frequently in areas where such cover 

 is restricted. Though they often perch below the tree crown, they 

 may be overlooked, as unless they are feeding or calling they rest 

 quietly. The usual call is a four-noted whistle, given very slowly 

 with a pause before repetition. Scolding calls heard occasionally 

 resemble those of related species. 



Graceful trogons come regularly to fruiting trees in the forest, 

 especially to figs. Dr. Frank M. Chapman (Tropical Air Castle, 

 1929, p. 403), on Barro Colorado Island, found them feeding on 

 the berries of mangabe (Didimoponax morototoni) . Such food is 

 seized quickly on the wing. One shot on Cerro Pirre had remains 

 of caterpillars, locustids, a larval neuropteran, and a few seeds in 

 the stomach. I have seen them among other birds watching for 

 larger insects flushed by a moving ant swarm. 



On Barro Colorado Island their nests (with 2 eggs) have been 

 found in April and June. Skutch (Ibis, 1966, p. 8) mentions the 



