I have 9 ducklings and a gosling in a 20'x 9' coop. They have constant daytime access to an outdoor run with a pool. One of the ducklings is constantly chasing the others around and pulling out their feathers and eating them. Is this a naughty habit or a protein issue? I pay extra to buy them a good quality (or so I thought!) specialist goose and duck food. http://www.smallholderfeed.co.uk/Products/Poultry/Goose-and-Duck-Grower-and-Finisher-Pellets.aspx I thought this would mean I didn't have to worry about nutritional issues. Any thoughts? It's a khaki campbell if that makes any difference and they are around 4 weeks old. Thanks!