I have t baby chickies, one silver laced wyndote, one rhode island red, one ameraucana and two still unknown they are 6 weeks old and all pullets. My two chickens outside are a leghorn and a rir and they are 2 years old, when is a good time to bring them outside to live with the others.. I brought the babies outside a few times and the rir female adult was growling at them and wanted nothing to do with them, I am not sure what to do??