Total newbies! We're hopefully heading to Farm and Fleet to pic up some chicks tonight. We want to end up with 3 hens, but my wife thinks we should get 4 chicks, thinking we'll loose one along the way while the chicks grow up. Are F&F chicks generally healthy? We'll follow all the great care guidelines found on this site and others, but being novices... Should we get 3 or 4 chicks???