I am new to posting but have been reading for a long time. Such a great place for info!! Our 3 new Buff ducklings arrived today in good health. I've noticed this afternoon, one of them is...well for lack of a better way of saying it...a pain in the a** to the other two lol. She kind of walks along behind them or beside and pecks at them. Should I be worried? Otherwise she seems fine. Is this typical...establishing some sort of 'pecking order'?