FAMILY FURNARIIDAE 87 



through low, weedy growth immediately above the ground. They are 

 mainly silent, the usual notes being clicking sounds without much 

 force or character. 



The record from Calovevora, northern Veraguas, is based on speci- 

 mens in the British Museum taken by Arce (see Salvin, Proc. Zool, 

 Soc. London, 1870, p. 192). Salvin and Godman (Biol. Centr.- 

 Amer., Aves, vol. 2, 1891, p. 163) list it also from Calobre, Veraguas, 

 a lowland record that is questionable. 



SYNDACTYLA SUBALARIS TACARCUNAE (Chapman) 



Xenicopsis subalaris tacarcunac Chapman, Amer. Mus. Nov., no. 86, August 28, 

 1923, p. 16. (Head of Rio Cuti, 1400 meters, east slope of Cerro Tacarcuna, 

 Choco, Colombia.) 



Characters. — Darker, more olive, less reddish brown above ; grayer 

 on lower surface ; chin and throat paler, more yellow ; smaller. 



A male, taken on Cerro Mali, Darien, February 22, 1964, had the 

 iris dark reddish brown ; maxilla fuscous-black ; extreme tip of 

 mandible and a line covering upper half, becoming broader on the 

 rami, dusky neutral gray ; rest pale dull greenish white ; gape honey 

 yellow ; tarsus and toes dull green ; claws dusky neutral gray, paler 

 at the tip. 



Measurements. — Males (10 from Cerro Pirre and Cerro Mali, 

 Darien), wing 84.2-89.4 (87.6), tail 73.2-80.5 (76.8), culmen from 

 base 20.2-22.1 (20.6), tarsus 22.2-23.0 (22.6) mm. 



Females (10 from Cerro Pirre and Cerro Tacarcuna, Darien), 

 wing 81.3-89.1 (84.6), tail 71.3-79.1 (74.7), culmen from base 

 19.7-21.5 (20.7), tarsus 22.0-23.6 (22.7) mm. 



Resident. Fairly common in the Subtropical Zone forests of 

 Darien; recorded on Cerro Pirre between 1220 and 1580 meters, 

 and Cerro Mali and Cerro Tacarcuna from 1400 to 1460 meters ; 

 ranging on the eastern slope into northern Choco, Colombia. 



Like the western race, these are active birds that range from the 

 top branches of the undergrowth to the lower tree crown. Once I saw 

 one climbing a vertical tree trunk, woodpecker fashion, bracing with 

 the tail so that I thought that it was a woodcreeper until I had it in 

 hand. Those collected had eaten insects. On Cerro Pirre, E. A. 

 Goldman in April 1912 found them rather common, ranging from 

 bamboo thickets near the ground to the larger limbs of the trees above. 

 A male taken April 23 was in breeding condition. In a brief memo- 

 randum he refers to their "rather harsh rattling notes." 



