Arbelaez-Cortes and Marin-Gomez • MIXED-SPECIES BIRD I LOCKS 
577 
C_Flock10 
C Flock30 
FIG. 2. Cluster analysis, based on the Jaccard index, of mixed-species bird flocks in a high zone of Quindto. 
central Andes of Colombia. The named terminals represent flocks and elevation bands are. ■ ’ 
3.150—3.300 m. and C = 3 . 300 - 3,450 m. Shaded names depict those mixed species bird flocks with similarity values -0.6. 
