My buff Orpington hen has some sort of small, yellow bumps on the inside of the bottom of her beak, on either side of her tongue. I don't know what they could be, they may have been there for a while: the hens don't like it when I look in their mouths. They aren't weeping or anything like that. I don't think that they are bothering her; she's pretty vocal about things that bother her. Does anyone have any ideas on what these things could be? Thanks!