Rebel,
Do you mean the tapetum? The tapetum, which acts as a mirror and reflects the light not absorbed by the receptor cells when it enters the eye the first time back across the cells for a second chance. In other words, deer get to use the same light twice while humans get to use it only once.

None the less, still very good points to your post. I am willing to share my knowledge with fellow hunters, which could quite possibly make it possible to get their deer in a weekend. I know it works for my hunting buddy’s and me but we need to understand the deer's senses, reproductive cyclesand the communications that go along with them first. This is why I started off the way I did.

Thanks Rebel and looking forward to an ongoing discussion....

Come on all you guys, start asking some questions or giveme your thought!!!