| hematozoa of wood ducks (aix sponsa) in missouri. | we examined 371 wood ducks (aix sponsa) for hematozoa from two localities in missouri (usa) in 1989 and 1990. thirty-seven (10%) harbored one or more species of blood parasites. haemoproteus nettionis was the most common parasite, occurring in 36 (10%) of the birds. leucocytozoon simondi was found in two (0.5%) and microfilaria occurred in five (1%) of the wood ducks examined. infections were more prevalent in adults (18%) than in immature birds (2%). there was no difference in prevalence betwee ... | 1994 | 8151821 |