Earlier zoologists considered it merely motoric programmed instinctive behaviour. The ability to weave branches into a stable construction requires a definite learning process. Nestbuilding behaviour consequently can be seen as a tradition in the human sense, and an important one, because it shows us that the hand can be understood as the primary tool. Nestbuilding thus becomes a primary type of handycraft in the factual and evolutionary sense of the word. The higher apes are nomads.
Every night is spent in a different place.
This is the source of a routine for nestbuilding behaviour. The construction process is rather stereotyped. Then thinner branches and twigs are woven into a wreath. Finally the platform is cushioned with twigs broken off and with plucked leaves. Uneven spots are levelled by knocking with the back of the hand.