Ok so I have 2 Australorps and 2 wyandotte chicks that are about 4 weeks old. I had a friend who decided to buy a polish chick and a silkie chick and has decided she no longer wants to care for them. They're probably less than a week old. I decided to take them off her hands and put them with my other 4 chicks. 3 of them get along fine but one of my Australorps is constantly attacking them. How should I handle this? Should I leave them and hope they sort it out without any injuries or should I seperate the baby chicks into my smaller brooder until they get a bit older?