Hi, are you sure she is a pullet I only ask this as we once got given a black Orpington as a young pullet. All was well at first it was quite friendly got on with other members of the flock free ranged in the garden. Then after a month or so it turned it a devil chicken started chasing the dogs in the garden and upsetting everyone else in the end we found it new home and it eventually turned out to be cockerel !! He has now made a lovely friendly gentle bird now that his teenage troubles are behind him.