Once again, you're living in the weeds. Most turkeys will re-nest and lay again if they lose their clutch, especially early in the nesting season. Research shows that the sperm from from being bred, remains viable in the hen for 30 days so if she loses her first batch of eggs she can re-nest and lay a second without even having to find another male. Fire is not the catastrophic turkey killer that you seem to think it is. I dont know anyone that burns their entire property all at once. People been cutting fire lanes and burning in the spring here in the south for the last 100 or more years. If it was as bad as you seem to think it is, there would not be a single turkey left in the SE by now. I think that the real issue is you like to grow weeds and you just dont like to see weeds get killed by fire.