I put one of my least favorite chicks (in case anything happened) under Dot last night, the chick kept trying to get out but Dot kept pushing it back under her like an egg. The nest box she went broody in has to be moved or she has to find a different nest box before she can have the chicks.
When marshmallow was broody she only pecked at me once but then I tapped her head and she never did it again. Dot will literally try to rip your skin off! She grabs your hand and twists! I know she will kill anything that tries to hurt her chicks.... Including us! I don't want her to teach her chicks to be afraid of people.
She is the only one that Is brave enough to terrorize marshmallow and her half-grown chicks.