RIO NEGRO CANON IN THE EASTERN ANDES 



Ea-sferu rhlf/e, near Moniercdondo, altitude 4500 fi. {J miction nf Oyiintciin Trofiiciil 



and East Andean Subtropical Fantiaii) 



The Chapman expedition stopped at Monteredondo and Quetame (five miles west) while following 

 the ninety-mile trail from Bogota to Villavicencio and the llanos of eastern Colombia. There was 

 scarcity of forest growth, therefore few tree-loving birds. Mingled with the Subtropical birds were 

 representatives of the Temperate Zone above and of the Tropical Zone below. This very evident 

 mingling of zonal species was not often found ; zones were usually sharply marked off. 



It is chiefly from the Bogota region that millions of skins of small birds, collected by natives with 

 blowguns, have been sent to Paris and London for millinery purposes. The trade began about 1840 

 and was at its height in 1885. Many of these specimens reached scientific institutions but all were 

 ■without scientific data of any kind. In the latitude of Bogota the Eastern Andes have a width of about 

 100 miles. There is very great need for further exploration work in this eastern mountain range 



484 



