Bow & Crossbow Hunting takes much more time and patience,the Deer have to be closer for an ethical shot thus making it easier for them to pick up Your scent.As mentioned....Deer change their travel pattern as the weather changes and as the Rut nears thier mind is on food,cover and bedding.Hopefully You can move Your stand closer to where the Deer travel and out smart them...keep up the scent control,improve on it and watch Your movement in the stand.