What does everyone think is the best type of feed for the kind of ducks I have..I have 1 white crested female,1 white layer female,2 mallard females and 2 mallard boys..I feed muliti-flock pellets and cracked corn..They will not eat any type of vegetables..The ground is frozen so they have not got anything from it..I feed nightcrawlers 24 pack mostly everyday but Wal-Mart has been out for a few weeks they said it is just do to the weather..My ducks love worms..I was feeding layer pellets but was told it would hurt my boys eating that everyday..They lay really good eggs..I dont eat them or hatch them..I am going to try and hatch some this Spring for the first time..Since they have never seemed to want to sit on them...What does everyone think about the best feed type? Thanks