Excellent move, you will love them ! they roam all over and are great, probably the most hands off "pets" you can own ... also they are like security guards, you can hear them scream for a mile when something gets close. Really a good option, and omg 30 WHAT a flock ! grats !
on another note; future post for you ??? actually thought you might want to share this, at least know about it if you didn't know already.
http://www.wtoc.com/story/35613136/first-dog-flu-cases-confirmed-in-south-carolina