I once had a duck whose entire life was one big identity crisis. We bought a pair of little Muscovy ducklings from the local feed store, and were told that one of them was male and one female. I named the male Henry and the female Josephine. Sadly, Henry was killed by some marauding animal, and poor little Josephine was left alone with a flock of chickens. She eventually got over her sorrow at losing Henry and became convinced that she, too, was a chicken--following them around devotedly, pecking at the ground and generally doing everything in a chickenish manner. All was well for a while, until I discovered that the little duck named Josephine was turning into a large Muscovy drake! The feed store, as usual, had gotten mixed up. There was nothing to do but shorten HIS name to Joe, since I was so used to calling "her" Josephine.

We tried getting Joe two female Muscovies to keep him company, but he would have none of them. He was still convinced that he was a chicken.