Hi there- I have 2-7 week old pullets. A gold laced wyandotte and a gold seabright bantam. Today I will be adding a Blue Orpington about 5-6 weeks to my small(but mighty) flock. What is the best way to do this? I am new to chicken keeping but surely it cant be as simple as just putting the new baby in with my girls. Any advice on this is appreciated. THANKS!