The link isn’t working. He has watery poop nowI have never raised Mearns quail...there's definitely a sharp 'learning curve' to raising them and not a beginners bird to raise.
Here's a link to hopefully help you in your endeavors with Mearns.
http://www.google.com/url?q=https:/...FjAFegQIAhAB&usg=AOvVaw3zknfY1WXZrlkt3ieYfIQ8