
I would watch the male closely just to see how he is behaving. My drakes have never bothered babies. The moms do a good job at protecting them. I feed Purina Flock Raiser to all of mine from just hatched to adults. If you don't feed something with Niacin you would need to supplement it. It is ok for the adults to eat a starter while the chicks are growing. Make sure the babies cannot get in the water; they can drown. Smaller flat water dish is great for the little ones. They will learn how to eat and drink from seeing the mama. Congratulations on your new little ones

Be sure to join us over on the duck thread
https://www.backyardchickens.com/t/737292/the-duck-thread