Ok, we have a mutt chicken (probably RIR & game hen), named Rotisseree, she just started laying eggs last week. My Silkies lay cream colored eggs, she has started laying a bigger white egg. She goes into the chicken house gets in the box on the golf ball and if anyone gets near her she screeches at them (think girly velociraptor!). She has laid 3 eggs thus far! I have taken them away every day and yet she just sits on the one golf ball. I pull her out and let her run with the others and she'll eat and then go back in. If she sees another hen going up the ramp she runs up to them poofs out and makes the velociraptor sounds before attacking them and then running back into the box to protect her golf ball. I wish I knew how to upload videos, as I've been recording her on my cell phone. It's hysterical. Thing is, I didn't think broodies layed eggs! But she's doing it, and YES, I'm certain it is her still laying the egg about every other day.