Some weapons are very unique such as a book that ducks can preach from to convert other ducks to join their team. (videochums.com)
The world is also full of other ducks who sometimes tease. (bookpage.com)
Many can't fly and their colors don't necessarily match their environment; added to which they simply don't know how to act and would be unable to defend themselves if attacked by other ducks who already live in the territory. (bookbrowse.com)