MM Johnston 1948 Humpback Salmon 14 Aug.; showing her white belly. Twice another male made an attempt to enter this little hollow but the male that was first there with the female chased him away by biting his tail. Then a third female came up from below Downstream and chased out the original male - taking over place The female stayed in the hollow all the while, and was not molested by any of the males. I frightened them so that they both left the hollow. The female ven- tured to return to the hollow but when she saw me standing near it she turned + swam quickly up stream. In pools that measured 100 x 25 x 3 ft there would be about 100 -> 200 fish.