My RIR hens are 20 weeks old today and are going to start laying any day now My question is, around the time they start laying can they get a little grumpy? One hen who does the squat when you pet her and has already claimed her nest box became grumpy today. When I went to check the nest boxes she kept biting me! - I know chickens don't 'bite' but you know what I mean. It wasn't just a little peck but a grab and hold on type of pecks that leaves a mark. And she was clucking/squaking really loud. Up until today she has been so sweet. Just wondering what's going on.