it is easy to mistake a muscovy duck. We raised them for many years. Until they are at least a year old, it can be hard to tell what they are. I had a hen that looked like a drake and often was worse than any drake thought of being, but raised the most ducklings every setting. She passed away at the age of 12 and her mate lasted one more year and then passed away on their old nest one night, he was 14 then.