I have a guy that wants to sell me a female chinese mandarin duck for $20. She is pure bred and laying. He said she has been exposed to the drake and will come with 4 "fertile" eggs. The drake was killed by a stray dog and he is worried she may endure the same fate. She is being kept in a rabbit cage in his garage. I don't have a pond but I could maybe buy her a large tub to swim in? Is $20 too much for this type of duck? Will she be ok with chickens until I can find another duck to go with her? I've owned ducks before but they were call ducks so I'm not sure if the basic care is the same. Thanks guys!