Hi! I have two female Mallard ducks, both born in the spring of 2014. They started laying eggs on Christmas, 2014. They would each lay an egg every day until about July, 2015, only 1 duck lays an egg each day. I've been waiting to see if the other will start laying eggs again, but she hasn't yet. Does anyone know if this is normal, will my one female duck lay eggs again or is something wrong with her?