I am new here. I have two free range hens on our property. I am feeding them and they have become very friendly. I am enjoying getting to know the chickens. We are planning on building a coop for them to keep them safe. I would like to add to the flock - maybe 4 more. I was considering getting some baby chicks. Are there problems with raising baby chicks and adding them to the 2 adult hens I currently have? Please advise. Thanks for you help! New at this.