Il6 BIRDS OF THE REPUBLIC OF PANAMA PART 3 



brown ; chin and throat white margined with dusky ; sides of f oreneck 

 and upper breast tawny-brown with feathers broadly margined with 

 dusky, producing a squamate effect, with shaft Hnes tawny-buff ; rest 

 of under surface bister to sepia-brown, often with tawny shaft Hnes 

 faintly indicated on the lower breast and occasionally on the upper 

 abdomen ; under tail coverts in some faintly chestnut-brown ; edge 

 of wing, under wing coverts, and axillars dull cinnamon-brown, 

 varied to grayish brown, in some edged lightly with dusky. 



These are forest birds found from the lowlands up to the lower 

 subtropical mountain slopes from southern Mexico through Central 

 America and western Colombia to western Ecuador. Two races are 

 recognized in Panama. 



SCLERURUS GUATEMALENSIS GUATEMALENSIS (Hartlaub) 



Tinactor guatemalensis Hartlaub, Rev. Zool., vol. 7, October 1844, p. 370. 

 (Guatemala.) 



Characters. — Browner (somewhat more reddish) above and below. 



Jewel recorded that in a male the iris was dark brown, maxilla 

 black, mandible pale brownish yellow with dusky tip and tarsi blackish 

 brown. 



Measurements. — Males (10 from Costa Rica and Panama), wing 

 85.6-91.8 (87.0), tail 56.5-63.2 (59.5), culmen from base 22.4-26.7 

 (24.1), tarsus 21.^22.9 (22.3) mm. 



Females (10 from Costa Rica and Panama), wing 82.5-89.2 

 (86.4), tail 57.1-62.9 (59.1), culmen from base 23.0-25.3 (24.3, 

 average of 8) , tarsus 22.0-23.3 (22.6) mm. 



Weight, $ 30 grams, Cerro Campana (G. V. N. Powell). 



Resident. Uncommon locally in forested areas ; on the Pacific 

 slope at 1250 meters in western Chiriqui near El Volcan, at 840 

 meters on Cerro Hoya, Los Santos, and in lowlands from the Rio 

 Pacora to the Rio Chiman, in eastern Province of Panama ; on the 

 Caribbean side at 725 meters on the upper Rio Changuena, Bocas del 

 Toro, and in the Canal Zone (Barro Colorado Island, Gamboa, Lion 

 Hill, Gatun). 



Probably this leaf-scraper will be found in small number along 

 the Atlantic Slope between Bocas del Toro and the Canal Zone, when 

 that area becomes better known. 



While Jewel collected two males near Gatun, Canal Zone, the nest 

 and eggs that he secured (Stone, Proc. Acad. Nat. Sci. Philadelphia, 

 1918, p. 262) were those of some other species as the eggs are 

 described as spotted, instead of plain white. 



Near Juan Mina, Canal Zone, when I flushed one in a deeply 



