Whooper swan Cygnus cygnus (Linnaeus, 1758) with wounded wing that found in the Ercis district of Van province was brought into Directorship of Wild Animal Protection of University of Yuzuncu Yil. Despite the surgical interventions, the whooper swan could not be rescued. Five lice in the feather and three nematodes in the heart were found at examination of the whooper swan. These lice specimens were identified as Trinoton anserinum (Fabricius, 1805). After the necropsy, nematodes were found in the heart of the whooper swan. Nematodes were identified as Sarconema eurycerca according to their morphological pecularities. Sarconema eurycerca have been reported for the first time in Whooper swan in Van, Turkey.