Duck w/bad leg

Question
we found a female blue bill duck in the road that couldn't walk she seems lively but has a bad leg we are keeping her warm and letting her swim but cant find anything she is wanting to eat any and all advise is appreciated

Answer
Ducks eat little fishies, bugs, algae, and other aquatic plants and such but they also will eat grain, like duck mash.
If her leg is injured she needs to see a vet. Make sure it's not illegal for you to care for her as well. You don't want the kind of fines they will slap you with these days!!