Yeah, I was a little scared to ask, too, for the same reason. But I'm also glad I asked.I am very interested in this question as well, but I've honestly been afraid to ask it because there are a lot of people here who have very strong feelings about it.
But hypothetically if you had MG/MS and culled everything and cleaned up everything and started fresh with MG/MS-free birds, a wild bird could literally just give it right back to them, so what's the point?
AND since symptoms can never show up, even quarantining a new bird for 30 days doesnt guarantee you arent just bringing it right back in.
Also how do you do biosecurity and free range?
For biosecurity and free ranging, I think that depends on how close neighboring flocks are maybe? We are on 15 acres, and our birds don't wander super far, so I'm not super worried about infection from outside poultry flocks (right now) except for if my nieces come over, as they have chickens of their own and LOVE to interact with my chickens. I think biosecurity protocols are typically more about controlling human behavior, but I do worry about wild birds, as they can live for a long time with chronic illness, just like chickens can. I'd be very interested to know what the infection rate is in wild birds, and the transfer rate from wild birds to poultry flocks. Sounds like a PhD dissertation topic lol .