| helminth fauna of waterfowl in central oklahoma. | free-ranging waterfowl wintering in and migrating through central oklahoma were collected and examined for intestinal helminths. seventy-one ducks, including mallards (anas platyrhynchos), american widgeons (anas americana), blue-winged teal (anas discors), and green-winged teal (anas crecca) were examined; 64 (90.1%) harbored one or more species of metazoa. six cestodes, 6 trematodes, 6 nematodes, and 1 acanthocephalan were identified, an experimental, non-flying population of ducks was establi ... | 1980 | 7373725 |