If you haven't already done so, check out the Learning Center for all sorts of good articles on raising chickens:
https://www.backyardchickens.com/atype/1/Learning_Center
As the other greeters have already mentioned, it will be easier for you and the birds to get them all at once. Integration can be a tricky, time consuming process so make it easier on yourself and just get the ones you want at the same time.
Good luck to you, thanks for joining us!
