14 BIRDS OF THE REPUBLIC OF PANAMA — PART 2 



ble) ; tarsus and toes dark red ; claws fuscous. Another male, gonads 

 small (past breeding), from Puerto Armuelles, Chiriqui, February 15, 

 1966, had the iris brownish orange; cere fuscous; groove on mandib- 

 ular rami slate; rest of bill dull black; tarsus and toes pinkish red; 

 claws slate-gray. 



An adult female (past breeding), taken at the same time, had the 

 iris yellowish orange ; bare skin around eye, including rim of eyelids, 

 dull red, except lower eyelid which was greenish slate; cere and 

 grooved side of mandible slate; rest of bill black; tarsus and toes 

 pinkish red ; claws slate-gray. 



Measurements. — Males (10 from Panama), wing 151-160 (156.1), 

 tail 101.7-109.4 (104.5), culmen 12.7-14.5 (13.7), tarsus 20.5-23.7 

 (21.8) mm. 



Females (8 from Costa Rica and Panama), wing 150-167 (158.8), 

 tail 101.3-109.2 (105.1), culmen 12.8-14.8 (13.6), tarsus 20.7-22.8 

 (21.8) mm. 



Resident. Common on the Caribbean slope from Bocas del Toro 

 (Almirante, Cricamola) to San Bias (Mandinga, Puerto Obaldia), 

 and in the valley of the Rio Chagres (Pifia, Barro Colorado Island) 

 and its tributaries ( Peluca, on the Rio Boqueron ; Candelaria, on the 

 Rio Pequeni) ; less numerous on the western half of the Pacific slope 

 in western Chiriqui (Divala, Bugaba, formerly; Santa Clara, 1,450 

 meters; El Volcan, 1,350 meters), and Veraguas (Sona) ; common 

 in eastern Panama (Utive, Cerro Chucanti, Charco del Toro), less 

 abundant to eastern Darien (Cerro Sapo, El Real, Cerro Pirre, Cerro 

 Mali at 1,450 meters.) 



In the account of the ruddy pigeon which follows I have outlined 

 briefly its similarity to the present species. The short-billed pigeon is 

 found in forest, where in the main it ranges amid the concealment of 

 the heavy leaf cover in the high tree crown, its presence known 

 usually from the calls of males. 



The note, oh-whit-mo-gd, is easily imitated, so that I have answered 

 it on many occasions when one was near at hand. Usually the bird is 

 difficult to see, though occasionally the vocalist has come down low in 

 the branches to peer at me. The male also utters a guttural groo-oo-oo 

 at intervals. In mountain areas they may continue to call when fog 

 comes to cover the forest. Countrymen render the song as tres pesos 

 son (sometimes varied to tres pesos debo.) 



An egg collected by Dr. Pedro Galindo at Almirante, Bocas del 

 Toro, June 2, 1962, which is plain white, and measures 36.3x24.7 

 mm., is the first recorded for this species, so far as I am aware. 



