Hi everyone! I am getting ready to introduce my new set of chickens to my older flock! My older flock consists of 1 Easter Egger, 1 Isa Brown, 1 Barred Rock, & 1 Leghorn (all females). My new flock consists of 1 Buff Orpington Rooster, 2 Buff Orpington Hens, 2 Speckled Sussex Hens, 1 Silver Laced Wyandotte Rooster (who was supposed to be a hen, we may give him away), 1 Silver Laced Wyandotte Hen, and 1 Easter Egger Hen. First off does anyone have any tips on introducing them? We added on to our run this spring but haven't opened it up to the old run yet, so the 8 little ones have been living there but they can't get to the older ones. My older flock is pretty calm so I'm hoping we won't have major issues. Second off, I have read that calmer breeds such as orpington can get picked on by more aggressive chickens. Do any of my breeds have tendency to be aggressive? If so are there any steps we should take to prevent this from ever happening. There will be 12 (or 11 if the SLW Roo goes) Chickens in our flock and the have 48 sq ft of hen house space, and 136 sq ft of run space. We let them free range in the evening every day too. If anyone has any advice it would be greatly appreciated!