https://www.usgs.gov/publications/perpetuation-avian-influenza-molt-fall-migration-wild-swan-geese-anser-cygnoides-agent
Perpetuation of avian influenza from molt to fall migration in wild Swan Geese (Anser cygnoides):...
Wild waterfowl are considered to be the reservoir of avian influenza, but their distinct annual life cycle stages and their contribution to disease dynamics...