For twelve days the hunters do no work and refrain from eating meat, vegetables, fish, salt, and red pepper, rice being the only permissible food. They are obliged to take their food on the gallery, and those who have never been on such expeditions before must also sleep there during that time. A man who has taken part three or more times may join his wife, but he must take his meals on the gallery. When twelve days have passed no more food is given to the heads, which are hung on the beam again, three to five being placed together in a rattan basket, with leaves around them. At the triennial festival, tasa, blood of pig or fowl mixed with uncooked rice, is offered to the heads. Usually the head-hunting raids were, and are still to a limited extent, carried far away into distant regions and may occupy several months. The Saputans, who were devotees to the custom, would go as far as the river Melawi in the southwest to Sarawak in the north, as well as to the Murung or Upper Barito River in the east. Sometimes only two to five men would go, but usually there were about ten--an equal number remaining behind in the kampong. Controleur W.J. Michielsen, quoted before, relates an instance of a Dayak from Serayan, whose daughter had been killed by a Katingan head-hunter, who pursued the marauders to their homes, and, on the occasion of the festivities incident to the return of the members of the raid, he cut the head from the murderer of his child while the celebration was in progress. His action was so sudden that they were totally unprepared, and no attempt was made to prevent his escape with the head. In times gone by when a Saputan man, woman, or child died it was the custom for a member of the family to go forth to look for a head. In the case of an ordinary person one was deemed sufficient, but for a chief five to ten were necessary. When taking a head a cut was made in the slain man's chest with a parang; into the wound the raiders then put their forefingers and sucked the blood from them. Each head-hunter carried rice in a rattan basket, but he depended for food mainly on sago-palms and wild animals that were killed. After such an expedition has been determined upon, the preparations may occupy a year or even longer, but usually about three months. When all is ready for a start, a delay of from one to four days may be caused by unfavourable interference of an omen bird. Should a bird chance to repeat the omen when another start is made, the party must return to the kampong and wait a long time. The Dayaks are very much guided in their actions by omens taken not only from birds but also from incidents, and merely to hear a certain bird is sufficient reason to change all plans.