FAMILY DENDROCOLAPTID^ 



Key to the Woodhewers 



a. Small, length not over 156 mm. (6.10 in.). 



b. Bill short, wedge-shaped, the lower mandible sloping 

 upward; throat and chest with buffy wedge-shaped 

 spots Glyphorhynchus cuneatus pectoralis 



bb. Bill longer, lower mandible not sloping upward; 

 throat and chest grayish olive like breast and 

 abdomen Sittasomus sylvioides levis 



aa. Larger, length about 181 mm. (7.10 in.) or more. 



b. Large, plumage finely barred excepting wings and 



tail, bill stout, long and straight 



Dendrocolaptes s-t. sancti-thomcz 



bb. Medium sized, plumage with or without streaks or 

 spots, but never barred. 



c. Without streaks or spots; bill straight and about 

 as long as head. 



d. Russet brown, paler below (sides of head 

 faintly streaked, the throat flecked with buff) 

 Dendrocincla lafresnayi ridgwayi 



dd. Chestnut, paler below 



Dendrocincla homochroa ruficeps 



cc. With streaks or spots. 



d. Bill excessively long, slender and strongly 

 arched; hindneck, back, chest and breast 



narrowly streaked 



. Campylorhamphus trochilirostris venezuelensis 



dd. Bill not excessively long; slender and strongly 

 arched. Wings and tail chestnut. 



e. Bill long, straight and stout; larger birds. 



f . Head conspicuously and distinctly spotted ; 

 under parts with streaks. 



g. Back black with broad streaks of buff in 

 contrast to plain chestnut of remaining 



upper parts 



Xiphorhynchus I. lachrymosus 



gg. Back brown, sparsely and indistinctly 



streaked with buff 



Xiphorhynchus n. nanus 



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