I have 4 polish and 4 silkie chicks that are a week old day today. They are living in my garage with a heat lamp. Outside are my 3 Java chicks who are 4 weeks old today. They have been in my heated coop for 2 weeks, coming out in the run for a couple of hours over the weekend. My Javas are so afraid of me that they have a heart attack each time I go water and feed them. Also they are a lot bigger than my polish and silkies. Would it be ok to start introducing them together this weekend? (11/19/11) I understand I should prolly monitor thier interacting etc..