Hello! Recently, our newest flock members (two silkie hens) have begun integrating with our existing birds (EE, Faverolles and Ameraucana and a pair of Sumatra hens that do their own thing). They both still mostly stick together, while the others roam around in other areas of the property. One of the hens is bolder, and will do something I've never seen any of our flock do. She will come barreling into the group when I bring out treats, (or if they just happen to be congregating in the same area) crouched with her wings spread, and rush around clucking. It's very strange. At first I assumed it was just submissive squatting, but it doesn't look like the same behaviour. Any ideas?