276 BIRDS OF THE REPUBLIC OF PANAMA PART 2 



Characters. — Darker above, more bronzy green; rufous of rump 

 faintly darker; darker, more rufous on the under surface. 



A male taken at Chimin, Panama, February 17, 1950, had the 

 iris dark brown ; maxilla and end of mandible black ; somewhat more 

 than basal half of the mandible honey yellow ; tarsus and toes light 

 brownish white ; claws fuscous. 



An adult female secured at Puerto Obaldia, San Bias, February 16, 

 1963, differed in having the iris reddish brown, and basal half or more 

 of the mandible bright yellow. An immature female (fully grown) 

 collected near the Candelaria Hydrographic Station on the Rio 

 Pequeni, March 1 1, 1961, had the iris wood brown ; maxilla and end of 

 mandible black ; rest of mandible and gape light honey yellow ; tarsus 

 and toes flesh color ; claws black. 



Measurements. — Males (10 from eastern Panama), wing 35.5-39.4 

 (37.5), tail 31.3-35.9 (32.7), culmen from base 21.7-24.0 (22.9) mm. 



Females (10 from eastern Panama and northern Choco), wing 36.7- 

 40.3 (38.6), tail 32.0-36.2 (32.9, average of 8), culmen from base 

 22.2-23.5 (22.5) mm. 



Resident. Fairly common in the Tropical Zone in eastern Province 

 of Panama (Rio Pequeni, Chiman, base of Cerro Chucanti, Charco del 

 Toro), Darien (valleys of the Rio Tuira, Rio Chucunaque, and Rio 

 Jaque, Cerro Pirre to 550 meters), and San Bias (Mandinga, Armila, 

 Puerto Obaldia). 



This race extends from central Panama through western Colombia 

 in the lower Atrato Valley of northern Choco (Unguia, Acandi), 

 northwestern Antioquia (Villa Artiaga) , and along the Pacific slope to 

 western Ecuador. 



In the heavier forests of eastern Panama these hummingbirds 

 are fairly common, though often they may be overlooked in the dark 

 shadows of the low perches near the forest floor where they normally 

 rest. In contrast to this usual habit occasionally they come out of the 

 deep woodland to feed at flowers growing in the open on the banks of 

 streams. More rarely in such excursions they join other hummingbirds 

 at the blossoms of flowering guayabos fairly high above the ground. 



EUTOXERES AQUILA SALVINI Gould: Sicklebill, Pico de Hoz 



Figure 40 



Eutoxeres Salvini Gould, Ann. Mag. Nat. Hist., ser. 4, vol. 1, no. 6, June 1868, 



p. 456. ("Veragua," here designated Bocas del Toro.) 

 Eutoxeres aquila munda Griscom, Bull. Mus. Comp. Zool., vol. 72, January 



1932, p. 330. (Puerto Obaldia, San Bias, Panama.) 



