I’m trying to help a friend track down a kids’ book she remembers from her childhood. She was born in the late 1970s, so the date of publication would be no later than the mid-1980s; likely earlier. She remembers the plot as having to do with farm animals – ducks, in particular – fighting in a war, and recalls an illustration of a duck or duckling using a parachute. Sound familiar to anyone? Very grateful for any leads people can offer.