The _Bird Feast_. This feast is also called the _Head Feast_, because part of the ceremony connected with it is the giving of food to some human heads taken in war, or the _Horn-bill Feast_, because carved figures of the horn-bill are used. It lasts three days whereas other feasts only last one day. In the old days it was only held on the return from a successful war expedition, when the heads of the enemy were brought home in triumph. But in the present day this feast is organized when they get a good harvest, and when the people of the Dyak house seem so inclined, and if no new heads have been lately brought home as trophies, some old smoked heads that have been in the house for years are used. Among the preparations for this feast is the making of the carved wooden figure of the rhinoceros' horn-bill. This wooden figure is set on a high pole, which is fixed into the ground in front of the house. An offering of Dyak delicacies is hung up under it for food. Sometimes several of these figures are used. Some human heads are placed in large brass dishes in the public hall of the Dyak house, and to these offerings of food and drink are made. Some of the food is stuffed into the mouths of these heads, and the rest is placed before them. There are also certain erections called _pandong_ put up at regular intervals in the long public hall, and to these are hung war-charms, swords and spears, etc. The men who are chosen to make the incantations walk up and down, going round the _pandong_ and the heads in the brass dishes, singing the particular incantation that is used at this feast. This singing lasts the whole night, beginning at 8 P.M. and continuing till the following morning. Except for a short interval for rest in the middle of the night, the performers are marching and singing all the time. The killing of a pig, and examining the liver to find out whether good or bad fortune is in store for them, is the last act of the ceremony. 2. The principal feast connected with _Farming_ is the _Gawai Batu_ (the "Stone Feast"). It takes place before the farming operations begin, and is held in honour of Pulang Gana, the god of the land, who lives in the bowels of the earth, and has power to make the land fruitful or unfruitful. In this feast invocations are made to this god, and he is asked to give them a good harvest. The whetstones and farming implements are placed in a heap in the public part of the Dyak house. Offerings are made to the whetstones with a request that they may sharpen the tools and thus lighten the labours of their owners. After the feast is over, the whetstones are taken to the different farms, and the work of cutting down the jungle for planting begins.