Every time I go into the pen of 1 roo and 4 hens this one hen a sdw oegb flies up on my back and walks up to my shoulder while I am cleaning and refilling their waterer. Why does she do this? The roo in there with them gets a little loud when she does this and all the other hens stop and look at her like she is crazy. I was just thinking she might want to be petted so I give her a rub down and she just climbs right back up there.