510 BIRDS OF THE REPUBLIC OF PANAMA — PART 2 



AULACORHYNCHUS PRASINUS COGNATUS (Nelson) 



Aulacorhamphus caeruleigularis cognatus Nelson, Smithsonian Misc. Coll., vol. 

 60, no. 3, September 24 (27), 1912, p. 4. (Head of Rio Limon, 1,525 meters 

 elevation, Cerro Pirre, Darien, Panama.) 



Characters. — Base of culmen black; slightly smaller; averaging 

 faintly darker green above, but in this character variable. 



In an adult male taken on Cerro Mali, Darien, February 22, 1964, 

 the broad base of the maxilla across the nostrils, the posterior third 

 of the line of the culmen, the lower half of the sides forward through 

 the most anterior notch on the cutting edge, and the entire mandible 

 (except at extreme base) were black; rest of maxilla (except extreme 

 base) yellow; narrow, raised edge on base of maxilla from nostril 

 to gape bright yellow, with the posterior margin narrowly black ; 

 posterior base of mandible white, this color extending forward in 

 a narrow line on the thin edge of the rami for half their length, with 

 the posterior margin narrowly black ; back of tarsus dull blue, anterior 

 face and toes dull green; claws dull greenish gray, with a line of 

 black along distal half of upper margin. 



Measurements. — Males (10 from Darien), wing 115.0-121.8 

 (118.4), tail 93.2-105.5 (95.0), culmen from base 62.2-67.1 (64.4), 

 tarsus 33.0-35.8 (34.6) mm. 



Females (6 from Darien and northern Choco), wing 114.7-120.4 

 (116.6), tail 90.5-99.8 (95.0), culmen from base 51.5-56.0 (53.8), 

 tail 31.5-34.3 (32.8) mm. 



Resident. Found on the higher ridges of Cerro Pirre, Cerro Mali, 

 and Cerro Tacarcuna, Darien. 



In the latter part of February and early March 1964, toucanets 

 were present daily around our camp on the crest of the ridge of Cerro 

 Mali, and were seen regularly in the forest over the slopes of Cerro 

 Tacarcuna. Through the afternoon hours when I was occupied with 

 specimens and records, their calls came constantly from the borders of 

 the clearing, the usual low crik crik crik repeated as steadily as the 

 calls of the keel-billed toucan, but with the monotonous tone broken 

 by low, grunting notes. In the late afternoon of February 29 one 

 spent some time in investigating possible nest holes in a dead stub. 



PTEROGLOSSUS TORQUATUS TORQUATUS (Gmelin) : 

 Collared Aracari, Pichilingo 



Figure 65 



Ramphastos torquatus Gmelin, Syst. Nat., vol. 1, pt. 1, 1788, p. 354. (Veracruz, 

 Mexico.) 



