So, I don't have much experience selling birds, but I really think you have to be careful with 'free to good home' ads. Whether its roos or cats & dogs, often they are snatched up by unscrupulous people who take free animals are reselling them or using them for illegal purposes. I know it's tempting because you want to get rid of them, but I would be really nervous letting any roos go for free. Anyone who legitimately wants one shouldn't have a problem paying a few bucks for them. That being said, I haven't had any luck selling my extra roos, even when I list them for $5.