Ducks keep dying
We are new to raising ducks and need help since we've started loosing 1 every month or two.
We have 2 flocks of about 8 birds each and are only loosing them from one.
First the duck will have trouble walking, then can't walk much, then not at all, then dies. Still eats and drinks water till the end. Sometimes pure white secretion from the eyes, looks like foam.