I was given three Muscovy ducks today. I must say I am in awe. They are unlike any duck I have had. They have been well taken care of. The ladies are very sweet and tame. The drake tho, is just magnificent. His behavior is very intimidating tho. He seems to be very very grumpy, wagging his tail and kind of stalk me trying to nip at me. His owners said he has been very grumpy as well. Is this normal drake behavior?