no. 7 



FLOCKS OF NEOTROPICAL BIRDS — MOYNIHAN 



33 



Table 30. — Data from observations near Frijoles between November 30, 1959, 



and January 19, i960 



Unambiguous interspecific following reactions by tanagers, and joining reac- 

 tions by tanagers and honeycreepers. (No honeycreepers, warblers, or finches 

 were seen to perform unambiguous interspecific following reactions, and no 

 warblers or finches were seen to perform unambiguous interspecific joining 

 reactions in this area during this period of observations.) 



No. of 

 cases seen Species following Species being followed 



I Palm tanager Plain-colored tanager 



1 Blue tanager Plain-colored tanager 



1 Crimson-backed tanager Dusky-tailed ant-tanager 



Species joining Species being joined 



i Palm tanager Blue tanager 



2 Blue tanager Red-legged blue honeycreeper 



1 do. Plain-colored tanager 



1 Red-legged blue honeycreeper Plain-colored tanager 



1 Crimson-backed tanager Blue tanager 



1 do. Blue dacnis 



1 White-lined tanager Blue tanager 



1 do. Blue dacnis 



Table 31. — Data from observations near Frijoles between November 30, 1959, 



and January 19, i960 



Interspecific supplanting attacks by tanagers and finches. (No honeycreepers 

 or warblers were seen to perform interspecific supplanting attacks in this area 

 during this period of observations.) 



No. of 

 cases seen Species supplanting Species being supplanted 



3 Plain-colored tanager Blue dacnis 



2 Palm tanager Plain-colored tanager 



1 Blue tanager Plain-colored tanager 



3 do. Red-legged blue honeycreeper 



1 do. Crimson-backed tanager 



1 do. Summer tanager 



1 Streaked saltator White-lined tanager 



Table 32. — Data from observations near Frijoles between November 30, 1959, 



and January 19, i960 



The number of times species of the blue and green tanager and honeycreeper 

 alliance were seen to leave mixed flocks in a very conspicuous manner without 

 being followed by individuals of other species. 



No. of times 

 Species seen 



Plain-colored tanager 3 



Palm tanager 1 



Blue tanager 7 



Red-legged blue honeycreeper 1 



Crimson-backed tanager 2 



White-lined tanager 4 



Black-capped saltator 1 



Blue-black grassquit 1 



