One of my hens (Dolly) has been acting weird. She's been kind of reclusive, not staying with the flock as much and I noticed today that her tail doesn't seem as "perky" as the others. She doesn't seem sick to me, with the exception of a light colored comb. She's fine when she's around me, but also has not started laying yet. I am new to raising chickens. This is my first flock. I have half of what I started with from a predator attack several weeks ago, but three of the four hens I do have left have been laying for a few weeks. I don't believe Dolly is laying. I have several nests in the coop that I "made" with some tall grass and hay clippings and the other girls feathered them and use them, but Dolly seems a bit "lost" to me. All my hens are the same age. Youngins'.... My question is this: Is this normal behavior for a hen that is getting ready to start laying? Or should I be on the lookout for something else? Any guidance is greatly appreciated. Many Blessings!