ii4 



BIRDS OF THE REPUBLIC OF PANAMA PART 4 



The food, from examination of stomach contents, includes the usual 

 variety of small insects — ants, small beetles, caterpillars, earwigs, 

 roaches and their eggs, and small spiders. One collected by Burton 

 (Bull. Brit. Orn. Club, 1975, p. 85) at Cerro Pirre weighed 15.2 g. 



HENICORHINA LEUCOPHRYS (Tschudi): Gray-breasted Wood-Wren, 

 Cucarachero Pechigris 



Small, with short tail, similar to Henicorhina leucosticta, but breast 

 gray and tail longer. 



Description. — Length 103-115 m. Back, wings, and tail chestnut- 

 brown; crown sooty black; side of head black, lined prominently with 

 white, with a long white superciliary line; tail dull brown, barred more 

 or less with black; wings like back, indistinctly barred with black; an- 

 terior undersurface gray, with throat grayish white, plain in the nomi- 

 nate race, lined heavily with gray in subspecies collina; flanks and un- 

 dertail coverts reddish brown. 



Juvenile, darker above with the crown dull black; a prominent white 

 superciliary; side of head dull black, with the white markings, com- 

 pared to the White-breasted Wood-Wren, somewhat reduced; throat 

 for a limited area dull white; foreneck and upper breast dark gray; rest 

 of undersurface dull brownish black. 



A forest inhabitant, widely distributed in highland areas. Common 

 on wooded slopes, only in the mountains. Two subspecies are found on 

 the Isthmus, one in the west, the other, less common, from Cerro Azul 

 eastward. 



The species ranges from the highlands and mountain slopes of east- 

 ern Mexico, through Central America to Colombia, Venezuela, and in 

 the Andes (chiefly at subtropical altitudes) of Ecuador and Peru to 

 Bolivia. 



HENICORHINA LEUCOPHRYS COLLINA Bangs 



Henicorhina collina Bangs, Proc. New England Zool. Club, vol. 3, Jan. 30, 1902, 

 p. 55. (Boquete, Chiriqui, 1800 m alt.) 



Characters. — Throat dull grayish white, heavily streaked with dark 

 gray; otherwise like H. I. leucophrys. 



Measurements — Males ( 10 from Chiriqui and Veraguas) , wing 54.6- 

 59.2 (57.0), tail 30.5-34.3 (32.0), oilmen from base 17.1-19.0 (18.1), 

 tarsus 24.2-25.6 (25.0) mm. 



Females (10 from Chiriqui), wing 52.3-55.6 (53.6), tail 27.1-29.0 



