THE HONEY-GUIDES 



55 



numerous and fairly evenly spaced. In other words, in none of these 

 cases were the paths determined by directly observable limiting 

 conditions. 



If guiding were purposive in the individual this would be difficult 

 indeed to explain, especially since there were no obstacles or barriers 



Figure S. — Diagrams of routes taken by guiding birds. The figure in the lower left corner 

 is taken from Skead (Ostrich, vol. 17, 1946, p. 200), the others are from the author's own 

 experiences in Zululand and Natal. In all cases the breaks in direction are at trees 

 where the bird perched waiting for the follower. In each the letter S is the point at 

 which the trip started and the letter H the location of the beehive to which the bird led. 



such as hills, ravines, etc., to be by-passed. On one of these occasions 

 I was led for 21 minutes over a distance of about 750 yards; on re- 

 turning from the bees' nest to the starting point, I found it took only 

 9 minutes walking at the same rate, and that the distance was only 

 about 350 yards. On another guiding trip lasting 12 minutes and in- 

 volving a distance of 350 yards, the return without the bird took a 



