Again, thanks for the ideas. I do like the notion of the blinding flash at night, since that is when they usually sneak on the property. Best to send a good pic along, too. Wish I could wire it for a siren sound, too, but that might be overkill.

I talked with the sheriff's office & they agreed to send a patrol car around for the next couple of weeks. Neighbors know to call 911 when they see trespassers. Apparently the poachers told other young people they had permission to fish, so there was even a car full of eager anglers rolling toward my place. I need to put up more trespassing signs, and prosecute so others will stop this crap.