We have a hen that has been broody for about a week. We are leaving her be and she is sitting on 3 or 4 eggs. Some are hers and some aren't I believe. This morning was the first time I saw her get off the nest to drink (I'm sure she has before I just haven't seen it). She's walking very strange. Kind of with her legs further apart like a waddle. I've never had a broody before. Is this normal?