Falcated Duck at Slimbridge Wildfowl and Wetlands centre, Gloucestershire, England
Wildfowl or waterfowl, also waterbirds, is the collective term for the approximately 147 species of swans, geese and ducks, classified in the order Anseriformes, family Anatidae. Wildfowl usually live on wetlands. Many species are hunted, and some are kept for ornamental purposes.
Waterfowl decoys are well known which mimic the shape and coloration of a waterfowl.
Since waterfowl typically have their heads in several different positions while swimming, floating, eating or cleaning themselves, many versions of each species of duck decoys must be made.
At least one of the rear and/or front edges 82 and/or 84 define at least one detent 85 and 86, respectively, which matingly connects with the indentations 65 and 66, respectively, when the keel 16 is pushed or snapped into position in the coaxially aligned openings 62 and 70.