alert chinese goose, anser cygnoides, on a farm in germany

goose bird animal pet chinese geese graubraune hoeckergans höckergans hockergans anatidae anser cygnoides husbandry welfare shelter poultry fowl liver foie gras feather feathers plumage farm farming farmyard croft domestic livestock rural country agriculture agricultural beak garden water waterfowl individual single roast fauna wildlife flu avian influenza keeping vigilant alert watchful germany