In any case, so YOUR answer is it IS breaking the law but may or may not be stealing? What if that turkey shot 'hundreds of yards away over several hills and across the stream' would not be on the property in the first place without the corn piles?
This is very hypothetical and there is no way of proving, or even knowing if those turkeys would or would not be there just because of some corn piles several hundred yards away. To my way of thinking it must be proven that the hunter is willingly and intentionally breaking the law without a shadow of a doubt. Otherwise the hunter is innocent.