I'm a little concerned about one of my chickens. She's a 6 month old Rhode Island Red and she's been laying on a few eggs for three days straight now. Everytime anyone comes close to her she puffs up and "growls". Is this normal broody behavior? There is little chance that the eggs are fertalized since our rooster is young and terrified of her. Should I try to make her leave the nest or just let her go through the cycle? Please help.