Okay so, my EE wasn't sitting on the eggs that I gave her, anymore. So I put my RIR/NH in there, and she sat on the nest. I put an egg in front her and she brought it under there. Whenever she lays an egg, she stays on it for about 3 hours then leaves. While she is sitting on it, she acts like a broody but then she gets off and goes outside with the others. Any reasons why she would be doing this??