Because she doesnt know why everyone is congregating in the coop.?A flock of dedicated layers are a hoot to watch Q up, or get in line, in the morning. I'll often go out and refresh water at laying time, just because I love the "laying hour". The rooster stand soberly, quietly by. He's a hoot to watch. The ladies line up. Up on the roost is a pullet. Why isn't she down on the floor, awaiting her turn? Why would any pullet be sitting up on the roost in mid morning anyhow?