Walter O. Stieglitz

Utilization Of Available Foods By Diving Ducks On Apalachee Bay, Florida

A study designed to determine the vegetative composition and production of that portion of Apalachee Bay, Florida, ,included within the St. Marks National Wildlife Refuge was carried out in 1964. Gizzards and gullets of fourteen diving ducks were subsequently collected in order to correlate feeding activities with available foods. Greater scaup consumed large quantities of animal foods. Redheads consumed considerably more vegetative material than animal, and showed a predilection for shoalgrass. Shoalgrass contribituted 67.9 per cent of the total volume of all foods consumed by diving...