My 1yr old black rock hen has always been quite skinny, the rest of them are really quite big! I always make sure she gets fed well because she's not as confident as the others, but she never puts on weight? Her poos are completely normal and it doesn't affect her much, but I can feel her breast bone really easily, so I was wondering if you guys new of any extra fattening foods that could help her? Especially now it's getting colder here in Scotland. Any advice welcome!