I never thought silver sebrights could go broody, but she has been hanging out in the nest boxes often and she sometimes likes to sleep in them. Usually I go and collect eggs and she jumps right out and runs away. However, tonight I reached in her box to get the eggs and she didnt budge. She then puffed up her feathers and every time I would get close she would make all kind of weird growling noises? Is she broody?