Hello! I would like some advice on introducing new chickens together... I currently have 1 Golden Sex Link and 1 Barred Rock which are about 8 weeks old. They are fully feathered and living in their coop. I also have 2 Easter Eggers which are about 6 weeks old which are in a secure pen during the day and kept in their brooder box at night (they are not fully feathered yet). I also have 2 Black Austrolorps which are about 1 week old and obviously live in their brooder inside full time. My question is, I would like to combine the EE's and the Golden SL and BR together. I have kept them in pens next to each other in hopes that they would be able to see each other on a regular basis. I sometimes let them in the coop together while being monitored however my BR seems to be a little aggressive towards them (pecking, jumping, running them into a corner)... The EE's are terrified it seems. Is there an easier way for introduction? Side story, about 2 nights ago I had a predator attack 2 of my chickens. I used to have 1 Dominique and 1 other BR that were the same age as the BR I still have and the Golden SL. All 4 of them were in their run however a large eagle or hawk was able to get to my pen. The other 2 I still have (the BR and Golden SL) survived the ordeal with very minor injuries (a small scrape on top of their beak, lower comb) which has already scabbed over. I am wondering, because they went through this traumatizing event and survived could this be why the BR is acting aggressive towards the EE's? Thanks for any advice given!!