VOL. XXIII, PP. 71-76 MAY 4, 1910 



PROCEEDINGS 



OF Tin-: 



BIOLOGICAL SOCIETY OF WASHINGTON 



NEW OR RARE BIRDS FROM WESTERN COLOMBIA. 

 BY OUTRAM BAX<;<. 



The birds mentioned below were contained in a second collec- 

 tion* from western Colombia made by Mervyn G. Palmer, 

 which I received from Mr. W. F. H. Rosenberg last summer 

 but only just now have had time to touch. The region Mr. 

 Palmer has been working in is a very rich one, and both collec- 

 tions sent me by Mr. Rosenberg have fairly astonished me in 

 the numbers of rave and new forms they contained. 



Following are short descriptions of the new forms in the 

 present collection, and mention of a few other species where 

 ranges are extended or the record is apparently worth pub- 

 lishing. 



Botaurus pinnatus (Wagler). 



Two specimens, cT and Q , taken at (luabinas, l\io Cauca, January 10, 

 1908. This bittern seems to be very rare in South America north of 

 Guiana, though it has been taken in Nicaragua. 



Odontophorus baliolus sp. nov. 



Ti/pr from Xaranjito, Ri<> Dagua, western Colombia. Adult ?, No. 

 23,432, Bangs collection, Museum of Comparative /oology. Collected 

 June 20, 1008, by M. (J. Palmer. 



Characters. Somewhat similar to 0. paranib.r Rothschild of western 

 Ecuador, but very much darker; upper parts nearly solid blackish-brown, 

 only very slightly peppered and marked with paler (very different from 

 the mottled upper pails of 0. pnwmkic)] under parts deep chestnut, 

 much darker than in 0. p<ir<nnb;<'; black of chin and upper throat bor- 

 dered above by a white stripe (not present in 0. parambx). 



Mi'axuremenfs. Type, adult $, wing, 132; tail, -4S; tarsus, 3(>; cul- 

 men, is. 



* In July, I'.tos, in tin-si- I'rnco.Mlings, I published a short paper on the first lot sent 

 me from this source by Mr. Rosenberg. 



16 PROC. BIOL. Soc. WASH.. VOL. XXIII, 1910. (71) 



