Then the drivers or beaters enter the river and stretch in a line from shore to shore about 75 feet below the trap.  Each fellow squats in the water and places a heavy stone on his back.  One of the men calls, and the row of strange, hump-backed creatures disappears beneath the water.  There the men work swiftly, and, as later appears, successfully.  Each turns over all the bowlders within his reach as large or larger than his two fists, and he works upstream 4 to 6 feet.  They come up blowing, at first a head here and there, but soon all are up with renewed breath, waiting the next call to beat up the prey.  This process is repeated again and again, and each time the outer ends of the line bend upstream, gradually looping in toward the trap.  When the line of men has become quite circular and is contracting rapidly, a dozen other men enter the river from the shore and line up on each side of the mouth of the trap, a flank movement to prevent the fish running upstream outside the snare.  From the circle of beaters a few now drop out; the others are in a bunch, the last stone is turned, and the prey seeks covert under the rocks in the trap, which the flankers at once lift above the water.  The rocks are thrown out and the trap and fish carried to the shore.

In each drive they catch about three quarts of fish.  These are dumped into baskets, usually the carrying basket of the man, and when the day’s catch is made and divided each man receives an equal share, usually about 1 pound per household.  A procession of men and boys coming in from the river, each carrying his share of fish in his basket hat in his hand and the last man carrying the fish trap, is a sight very frequently seen in the pueblo.

The ka-cho’ is also caught in a small trap, called ob-o’-fu, by the third method mentioned above.  A small strip of shallow water along the shore is quite effectually cut off from the remainder of the stream by a row of rocks.  The lower end of this strip is brought to a point where the water pours out and into the upturned ob-o’-fu, carrying with it the ka-cho’ which happen to be in the swift current, the fish having been startled from their secure resting places by the fishermen who have gradually proceeded downstream overturning the stones.

A fish called “li’-ling,” which attains a length of about 6 inches, is also caught by the last-described method.  It is not nearly so plentiful as the ka-cho’.

One man living in Bontoc may be called a fisherman.  He spends most of his time with his traps in the river, and sells his fish to the Ilokano and Igorot residents of the pueblo.  He places large traps in the deep parts of the stream, adjusts them, and revisits them by swimming under the water, and altogether is considered by the Igorot boys as quite a “water man.”  He catches each year many ka-cho’ and li’-ling, and one or more large fish, called “cha-lit.”  The cha-lit is said to acquire a length of 3, 4, or 5 feet.