The Motu people inhabited the southern coastal and immediate inland areas of New Guinea.
They traditionally believed that their well-being depended on the continued support of their ancestral spirits.
Among the Port Moresby natives the boys at initiation have only one serious duty, which is for each to make his drum.
They are taboo, and live in the forest until the drums are completed ; this may be a week or a month.
see: Crawley, A.E. - Dress, drinks, and drums; further studies of savages and sex. 1931