This is a great site for good button quail husbandry:
http://www.cyberquail.com/homepage.html
A pair requires a minimum of 4 sq/ft if you are hoping that they will breed and need a lot of hiding places. Single sex pens can be as little as 1 sq/ft per bird (though it's not recommended as they...
Quail can be nasty aggressive and can go from seemingly being fine to a blood bath. Button quail are happiest kept as pairs - one pair per enclosure. Sometimes trios can work if there is enough space. I've recently had a male start plucking his 2 week old babies because he wants the hen to...