I've had my White Bobwhites less then a year so am new to this. So far, so good regarding snakes and rodents causing me a problem. Mine are in an 8 by 28 foot pen that is 9 feet high with cedar logs as roosts which they use a lot even sleeping on one nights that is about 5 1/2 feet high. The ground is natural with leaves, dirt, etc; I add mulch, shredded alfapha, etc; My quails eggs are white so easy to see and they mostly lay them in one nest in the corner. Eggs stay pretty clean. I have an electric mouse zapper which I've not used yet and just bought a couple minnow traps to hopefully catch snakes with. I keep a baby monitor on so I can hear what's going on outside. The peafowl, quail and 3 pheasant are vocal when something strange is about so I go out and investigate. So far their alarms are due to 1 of our cats resting up against the wire and a huge "Stick" insect which I left alone because they eat spiders and mosquitos. I so love watching the quail on the ground. They love it. Not even my peafowl digs holes as deep as the quail do, LOL!! They run about chasing each other, flying up and down from the roosts. It's a delight to watch. They look so content and happy and due to the activity and size of pen I have no problem with them hurting each other. They rule the roost chasing the 2 larger male Red Golden pheasant, LOL!!! I've been giving them leaves of Romaine lettuce which they and the pheasant love. A couple days ago I put the whole head in there and it was gone the next day. They love their greens and fruit. My birds are obviously pets! (-: