Ducks' Bill?
David
D
Bartram
D025041:Animal Migration; D000818:Animals; D000835:Animals, Wild / Q000821:virology*; D004372:Ducks / Q000821:virology*; D006801:Humans; D005585:Influenza in Birds / Q000635:transmission*; D007886:Legislation, Veterinary; D006113:United Kingdom