shore of a heavily vegetated pond in Buffalo County, Wisconsin, on 11 May 1994. The circular nest, about 48 cm in diameter and located in water about 20 cm deep, had been constructed on flooded terrestrial grasses. Shoots of grasses had been shorn off to construct the nest, and the bottom of the nest consisted of mud and roots. Tall grasses surrounded the nest except for a short area of the perimeter which was open water. A male bowfin (approximately 40 cm) was guarding the nest, and a school of 25-30 golden shiners (averaging about 5 cm) was swimming over the nest. The golden shiners usually stayed about 2-3 cm inside the perimeter of the nest, swam in a tight school, and appeared to avoid the head of the bowfin. Eggs spawned by several groups of golden shiners fell onto the bottom of the nest during the observation period. When startled by the human observer, the bowfin swam quickly from the nest to deeper water and, in doing so, frightened away the golden shiners. With the nest void of fishes, 17 bowfin eggs and 36 golden shiner eggs were collected from a 6 X 6 cm area of the nest with a