Since when is a deer not smart? Who is to say that the deer are going to feed in the field you are set up at? Who is going to say that they will come down a trail near you? There is no difference between night and day as to the amount of challenge. Also, deer do not feed consistently throughout the night. They feed for a little while after sun down and a liitle while before sun up.
Good Luck This Season: Buck Magnet
"Hunting is not a sport, it is a passion, it is a WAY OF LIFE"