He is 1 1/2 years old. This is my oldest duck. This happened only once and it never happened again and never happened to any other ducks.
Someone once told me to NOT give chick started to my ducklings because of the niacin in it. Seems this causes problems with the feet and legs.
I feed my ducks mixed seeds like corn, oats, wheat, etc. once in the morning and at night before closing them up for the night. During the day they
waddle around and eat bugs and dig in the ground with their beaks.
I thought that since they are free roaming in a very large area that they have enough niacin from the plants, grass, clover and bugs, worms etc.