572 BIRDS OF THE REPUBLIC OF PANAMA — PART 2 



on several occasions. Seven were collected in the scattered stands 

 of the former extensive woodland that still remain near the sea in 

 the region called Olivo. They were found on trunks or limbs of trees, 

 almost invariably in areas shaded by thick cover of leaves, where 

 their dark colors and small size combined to make them difficult to 

 see. Usually I located them by their steady pecking, and occasional 

 rapid drumming. Aside from this, they moved quietly so that it 

 was only occasionally that they came to my attention. 



The limit of range for this subspecies is found in southwestern 

 Costa Rica. As Slud (Bull. Amer. Mus. Nat. Hist., vol. 128, 1964) 

 found it also on the Rio Suab on the Caribbean slope it may range in 

 western Bocas del Toro, as the Suab in Costa Rica is a tributary of 

 the Rio Yorkin, which forms the international boundary before it 

 joins the Sixaola. 



VENILIORNIS KIRKII CECILII (Malherbe) 



Mesopicos Cecilii Malherbe, Rev. et Mag. Zool., ser. 2, vol. 1, November 1849, 



p. 538. (Colombia.) 

 Veniliornis kirkii darienensis Ridgway, Proc. Biol. Soc. Washington, vol. 24, 



February 24, 1911, p. 33. (El Real, Darien.) 



Characters. — Dorsal surface brighter, more orange olive-brown, 

 most individuals with considerable reddish orange wash on the back; 

 side of the head lighter; yellow of nape deeper, more orange. 



A male, taken at El Real, Darien, January 24, 1964, had the iris 

 wood brown ; maxilla fuscous ; mandible pale dull neutral gray with a 

 brownish cast ; tarsus and toes dull greenish neutral gray ; claws dusky 

 neutral gray. 



A female from Puerto Obaldia, San Bias, March 16, 1963, had the 

 iris orange-brown; central ridge line of the culmen fuscous; base of 

 maxilla below nostril and mandible dull light neutral gray; rest of 

 maxilla pale mouse brown ; tarsus, toes, and claws dark neutral gray. 



Measurements. — Males (16 from Darien and northwestern Colom- 

 bia), wing 81.7-86.7 (83.3), tail 46.1-54.6 (50.5), culmen from base 

 18.2-23.3 (20.4), tarsus 14.0-16.0 (15.4) mm. 



Females (17 from Darien, San Bias, and northwestern Colombia), 

 wing 79.5-85.2 (82.0), tail 46.2-51.0 (48.3), culmen from base 17.7- 

 20.2 (19.3), tarsus 15.0-16.6 (15.6) mm. 



Resident. Found locally in small numbers in the forested lowlands 

 in Darien in the Tuira-Chucunaque Valley (El Real, mouth of Rio 

 Tuquesa, Boca de Paya), Garachine, Jaque, and Rio Jaque; to 550 



