if you are getting babies - and plan to keep them together you might want to check around - I'm getting all the ones that I plan to raise together during a 3 week window because I've been told that if you get them too far apart in age the older ones might pick on the littler ones, also have been told that you can try keeping them seperate but in sight for a while then letting them together - anyhow - just what I've been told to be careful about mixing ages that are more than a weelk of so apart. (I'm new to this too but been doing a lot of reading/researching/listening so I hopefully won't make any really big mistakes - just lots of little ones)