The results of these observations are illustrated in Figures 2-6 in which the species' feeding zones are indicated on diagrammatic spruce trees. While the base zone is always proximal to the trunk of the tree, as shown, the T zone surrounds the M,
and is exterior to it but not always distal. For
each species observed, the feeding zone is illus
trated. The left side of each illustration is the
percentage of the number of seconds of observa
tions of the species in each zone. On the right
hand side the percentage of the total number of
times the species was observed in each zone is
entered. The stippled area gives roughly the area
in which the species is most likely to be found.
More specifically, the zone with the highest per
centage is stippled, then the zone with the second
highest percentage, and so on until at least fifty
percent of the observations or time lie within the
stippled zone.