divided in order to do their work thoroughly."

"What is a guild?" asked Rap.

"A guild is a band of people who follow the same trade or occupation,
and birds are banded together according to the ways in which they work,
though some may belong to several guilds. We will name each of the six
guilds:

"1. Ground Gleaners.

"The birds who feed largely upon the insects which live in, on, or near
the ground.

"2. Tree Trappers.

"The birds who feed on insects which lurk about the trunks and branches
of trees and shrubs.

"3. Sky Sweepers.

"The birds who, while on the wing, catch flying insects.

"4. Wise Watchers.

"The large, silent birds, who sit in wait for their prey of field-mice
and other little gnawing mammals, as well as insects.

"5. Seed Sowers.