NO. 7 FLOCKS OF NEOTROPICAL BIRDS — MOYNIHAN 3 1 



flocks at Gamboa during the period of observations. The data in 

 these tables are arranged in exactly the same way as the corresponding 

 data in tables i and 2. 



Tables 22, 23, and 24 are counts of interspecific following, joining, 

 and supplanting reactions. The following and joining reactions are 

 not added together. Otherwise the data in these tables are arranged 

 in exactly the same way as the corresponding information about Barro 

 Colorado birds. 



Table 25 is a count of nonfollowing reactions, as in table 7. 



Tables 26 and 27 show the frequency of associations between the 

 most commonly observed species of the blue and green tanager and 

 honeycreeper alliance at Gamboa. The data in these tables are the same 

 type as in tables 8 to 19, but they are arranged in a different way. All 

 the associations between species in flocks of two species are summa- 

 rized in one table, while all the associations between species in flocks 

 of three or more species are summarized in the other table. 



Tables 28 to 34 are based upon observations in the area near Frijoles 

 between November 30, 1959, and January 19, i960. Most of the birds 

 of the blue and green tanager and honeycreeper alliance were not 

 breeding throughout this period ; but some of them may have begun 

 to show a little breeding behavior toward the end of the period. These 

 tables include the same kind of data obtained and arranged in the 

 same way as the data on the birds at Gamboa. 



Tables 35 to 39 include similar data obtained during observations 

 near Frijoles between July 7 and August 16, i960, just after the 

 breeding season. Interspecific following, joining, and supplanting 

 reactions were so rare during this period that they are all summarized 

 in the same table. Good examples of leaving mixed groups in a con- 

 spicuous manner without being followed were so very rare that they 

 are not shown at all. 



Tables 40 to 43 are summaries of observations made in several 

 areas. Tables 40 and 41 are summaries of all the unambiguous inter- 

 specific following and joining attempts by finches, tanagers, and 

 honeycreepers at both Gamboa and Frijoles during all periods of 

 observation. Table 42 is a summary of all the interspecific contact 

 fights (in which actual blows were delivered) between finches, tana- 

 gers, and honeycreepers observed at Gamboa and at Frijoles between 

 July 7 and August 16. No interspecific contact fights were seen at 

 Frijoles between November and January. Table 43 is a summary of 

 all the intraspecific contact fights (among members of the blue and 



