Hi guys! I need some help/re-assurance! This is the first time I have integrated new chickens to my existing flock. My existing flock is a year old - 5 Red Stars and 3 Black Stars. My newbies are 2 Buff Orpingtons, 1 Barred Rock, and 1 Americana. They are 12.5 weeks old. I built a little baby run for them in the coop with the big girls and they have been in there for 3 weeks. So, they've just had a little bit of chicken wire between them for quite awhile now. Today I took down the wire and figured they could all be together. I let the big girls out to free range in the yard, and I put in lots of great distractions (grass clippings! Treats!), and I took down the wall. The big girls, especially the Black Stars, have just chased them something fierce. The little girls are very flighty and scared and they are currently all hiding behind their feed storage box (I made sure it was big enough for them, but not for the big girls, so they had a spot to go). Is there something else I need to do? Will they come out eventually? Is this stress really hard on them? I feel like a bad chicken mama!