do ducks need another duck to be happy? have a pekin duck wonder into my yard 6 days ago. She is doing very well. She follows me every where. She has everything she needs, but I am wondering if she need to be with another duck to be really happy? She seems to like my cat, and he the same of her. they are together quite oftern. Does having a cat as a friend make her happy or do they need another duck or two? Appreciate all the info you may have.