That must be nice. Since I am renting the land that I have my birds on, I cannot have my own dogs on the property, which would be nice. So far though, have not had an issue of that nature. Marek's is apparently in the soil which several of my birds were not immune to. It's one of the reasons I refuse to vaccinate the birds for Marek's. I want birds that have their own tolerance instead of having to vaccinate and medicate against every little thing. Langshans have zero issues, however the bantam Sussex are highly susceptible to it. If I wind up losing the whole flock, so be it. It's not something I want to deal with and they are only a side project to my Langshans anyway. I suppose many birds would be much more suited to the 100+ days with high humidity, but the Langshans and bantam Sussex do a good job against it. Any I lose to the heat didn't need to be there anyway. I've found that good air movement is the key in the heat. If you have stale air just sitting in the barn, you're going to lose alot more birds than if you have air moving throughout all the pens.