1917.] Chapman, Distribution of Bird-life in Colombia. 391 



(2164) Chamseza brevicauda columbiana Bed. & Stolz. 



ChamcBza columbiana Bbhl. & Stolz., P. Z. S., 1896, p. 385 (Bogotd). (= Cha- 

 mcEza bogotensis Auct. nomen nudum). 



This appears to be a species of the Tropical Zone. It was common in 

 the heavy forests at Buena Vista, but was not found at Villavicencio at 

 the base of the Andes, doubtless because of the lack of suitable haunts. 

 In the primeval forests about La Morelia (alt. 600 ft.), however, it was 

 represented by a form which I provisionally refer to C. b. nobilis. 



The striking difference in the song of this species and that of C. turdina 

 has been well described by Fuertes (Bird-Lore, 1914, p. 180). 



Buena Vista, 9. 



(2167) Chamaeza brevicauda (nobilis ?) Gould. 



Chammza nobilis Gould, Ann. & Mag. N. H., Ser. 2, XV, 1855, p. 344 (Chami- 

 curos, Peru). 



Three specimens from La Morelia appear to represent this form of 

 which, however, I have no specimens for comparison. They have the tail 

 tipped with white rather than with "pale fulvous" and may be separable, 

 but I hesitate to take this step without direct comparison with authentic 

 specimens of nobilis. 



La Morelia, 3. 



(2169) Chamseza turdina Cab. & Hein. 

 Chammza turdina Cab. & Hein., Mus. Hein., II, 1859, p. 6 (Bogota,). 



Probably not uncommon in the upper part of the Subtropical Zone of 

 the Central and Eastern Andes, where the density of the vegetation and 

 the bird's elusive habits make it exceedingly difficult to secure specimens. 

 We did not see or hear this species in the vicinity of Bogota, but in the 

 Central Andes above Miraflores at an altitude of 8000 feet, its singular, 

 prolonged whistle was not infrequently heard and Fuertes secured one 

 specimen. Two others were taken by Miller, one at La Palma, the other 

 at Andalucia (alt. 7000 ft.) on the crest of the Eastern Andes. The latter 

 specimen being from the range from which the type was secured is probably 

 typical of the species. It agrees closely with the Miraflores bird, but the 

 La Palma specimen is more olivaceous above; probably an individual 

 variation. 



From C. brevicauda this species is readily distinguished hy the absence 



