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[Vol. 92 
Fig. 2. Positions of nests involved in internest transfers in September. The arrows 
give the direction taken by observed carrier/ recruit pairs, and the figures beside the 
arrows the numbers of such observations. Thus, most activity involved nest 60, with 
60% of all observed carrier-recruit pairs moving to it from nest 59. 
November. It soon became clear that carrying was occurring 
between nests 59, 60 and 57, and such movements occurred in each 
of the possible directions. But the predominant direction remained, 
as shown in figure 2, from nest 59 to nest 60 (involving 60% of all 
observations of carrying). The fidelity of carrying direction was 
high; during our observation periods we saw only one carrier change 
the nest it used as a destination. While it is likely that carrying 
started before we first observed it, it is our impression that it started 
first with nests 59 and 60, with nest 57 becoming involved later. 
