To me it's the same as jack lighting deer. I've seen nothing in the regs. making it illegal, but I'm guessing in most cases it would probalby be in viloation of the shooting hours laws. On a couple of occasions I've heard shots well before legal time that I suspect were birds being blasted off the roost. Never have understood why someone would want to poach or shoot illegally and then brag about their "prize" to other hunters.