I have a drake mallard mix(ruin) he was rehomed with me in February. I was told he was approx 1 year. He has a mate, she had a clutch of 15 and hatched 10 successfully in early May. She layed another clutch about 8 weeks later of 12 and all were eaten or pushed out of the nest by her and she got off the nest about a week ago. I assume they were not viable. She looks under weight which I expect due to her sitting for so long. But the drake is beginning to look poor also. What's going on with my ducks? Is there a supplement that I should be giving?