1917.] Chapman, JLHstribuHon of Bird-life in Colombia. 45 



and though still heavily wooded is more second growth and much less moss. 

 The trail descends again to the river at 6500 feet and follows it to 6100 feet; 

 It then ascends another ridge rather steeply up to 6800 feet (Las Cham- 

 bas — stop for night) and descends again to 6100 feet, and the river which it 

 follows for but a short distance rising abruptly and then gradually until 

 7000 feet is reached and a long gradual descent begun to San Agustin. 

 This latter country is much more open than that first reached at 7000 feet, 

 but there is abundant evidence of deforestation until the last descent is 

 commenced to San Agustin, which seems naturally more arid and less for- 

 ested except along tributary streams which are forested even down below 

 the altitude of San Agustin (6000 ft.). None of these are in the near vicin- 

 ity of the: town, however, the country being semi-arid and more or less like 

 that about Call. Here I was laid up completely and unable to do any col- 

 lecting whatever. Here we met Senor Nieto of the Bogota engineers and 

 discovered that our barometer was reading 900 feet too high, so that the 

 altitude of San Agustin should be 5000 feet. When this error commenced 

 I do not know. 



"The country from San Agustin to Neiva and thence to Giradot in 

 general, is very similar to that about the headwaters of the Cauca, being 

 semiarid (more so than the Cauca) except along the streams, where con- 

 siderable coffee and cacao is raised." 



Expedition No. 5. — 8an Agustin to the Caqimta Region. April 7 -Sept. 1, 



1912. 



Personnel. — L. E. Miller. 



Itinerary. — Illness having compelled Allen to leave the country. Miller 

 carried out the plans of the original expedition, assisted only by natives. 

 From April 7 to 25, and again on May 19 to 21, he worked in the vicinity of 

 San Agustin going far enough from the city to reach the virgin forest. It 

 was during this period that he discovered a nesting colony of the Cock-of- 

 the-Rock. April 27 to May 5 he was resident at La Palma, and from May 

 7 to 19 at La Candela, both in the forest respectively south and west of 

 San Agustin. 



Returning to San Agustin May 20, preparations were made for the trip 

 over the new government trail to the Caquetd. Region. 



The Eastern Andes were crossed at Andalucia (7000 feet) and some col- 

 lecting was done on both eastern and western slopes (May SO^June 20). 

 Florencia was reached June 24, and collections made there until July 6, 

 while at La Morelia the work was pushed vigorously from July 8 to July 26. 

 Mr. Miller is, so far as I am aware, the fitrst ornithologist to enter Amazonian 



