126 BIRDS OF BlUTISH GJIIANA. 



this bird is distributed throughout British Guiana and lias similar 

 climbing habits to that o£ our Common Tree-creeper (Certhia 

 familiaris). Although it usually lives in Avoods, individuals are 

 sometimes found on isolated trees. It makes its nest in the holes 

 o£ trees. 



Genus THRIPOBROTUS Cab. 

 TJiripohrotiis Cabanis, Arch, fiir Naturg. 1847, i. p. 389. Type 



T.fuscus (Yieill.). 



• 



Fig. 51. — Thripohrotus fuscus. 



The species on which this genus was based has a somewhat 

 long, slender, and compressed, bill. The wing is rounded, the 

 third, fourth, and fifth primaries longest and equal, the second 

 intermediate in length between the fifth and sixth and the first is 

 about equal to the outer secondaries. The tail, which is rounded 

 at the tip and graduated, is about seven-tenths the length of the 

 wing, the shafts are bare at the tips and the two middle feathers 

 longest. The tarsus is shorter than the exposed culmen and the 

 middle toe and claw about two-thirds the length of the latter. 

 Coloration : male and female similar. 



Keij to the Species. 



A. Smaller, wing less than 90 mm. 



a. Grenei'al colom* darker both above and 



below T. puncticeps,\>. 126. 



B. Larger, \\ing more than 90 mm. 



h. Genei-al colour paler both above and below T. alholineatus, j). 127. 



431. Thripobrotus puncticeps. 

 Spotted-crowned Wood-hewer. 



^icolaptes puncticeps Sclater & Salvin, Nomencl. Av. Neoti-. pp. 09, 10 

 1873 (Interior of Guiana); Salvin, Ibis, 1885, p. 4-22 (Mcrun 



,100, 

 ume 



