Larger dark brown/black body – green mallard head – white softball size crest on his chest – No other mallard markings – he is not a small size duck – I live in Northern Michigan and it is still not very warn yet. No other nesting birds have hatched yet. Has been hanging around about two weeks now and has gotten to the point I can feed him from my hand. He will come up to me wanting to be fed. Can wild ducks and domestic cross breed? Does not appear to be injured -although I have never seen him fly.