PROPERTY AMONG BIRDS
I n the previous chapter I have discussed the facts of acqui sition and property in the economy of the insect world. In this chapter I wish to approach much the same sets of facts through an examination of their relative importance in the life of the bird. I will consider first, therefore, the various accumulative activities which have at one time or another been subsumed under an instinct of acquisition. For clearness of treatment I have divided these activities into two classes: the first is concerned with the accumu lation of food, and the second with the accumulation of objects of value other than food. I will deal with these two classes separately.