Last week we bought home 4 new Wyandotte pullets to introduce to our flock of 3 wyandottes and 6 guinea fowl. We haven't free ranged our flock yet as we are still fixing fences to keep our neighbours dogs out. We've had them separated all week, but visible to each other. Any time we've tried to integrate them the exisiting guys (predictably) want to establish themselves in the pecking order but the pullets run and hide on the roost and won't come down to eat or drink. If we put them down on the ground they're attacked by the exisiting guys and they run back for the roost. What can I do to get them settled in?