Bottom
果 is the fruit-on-tree pictograph —
田 fruit-cluster over
木 tree. In
巢 it stands for the tree itself (the lower part of the original drawing was an actual tree, later regularized to
果). The full picture: three chicks poking out of a nest perched in a tree. Survives in
鸟巢 bird's nest,
老巢 lair,
蜂巢 honeycomb.