Hi... I am not a parrot owner yet, but I am interested in buying one that is needing a new home. The parrot comes from a home where they've been smoking. How compromised could her health be? I noticed her feathers weren't as vibrant as some I've seen on the internet, but they said she was starting to molt. I'd rather not buy the bird then find out she has health problems related to the smoking. I would appreciate any advice! Thank you!