I am totally new to all of this about chickens. I have 2 out of my 5 hens that are mature enough to lay eggs. They lay them on the ground in the same place every day. One chicken appears healthy and normal. The other one does the same except that she has something hanging out of her vent that looks like a couple of wet, dark chicken feathers, and this has been there about a week. One of the other hens was picking at it, without success. What in the world can this be? Is it normal? She is eating and acting normally and laying normal eggs but I am concerned as to what it is. I am not confortable with trying to catch her and pull it out. Any suggestions would be appreciated. Thank you.