out all day in a ground blind toasty inside with a heater & outside was negative 6 deg. heard 1 shot all day . never seen a deer all day. buddy sent me a picture of aprox 60 deer bunched up & heading onto a state game land & never heard a shot go off . said he drove by around lunch time & no vehicles around.hopefully better luck tomorrow going to 25 deg. you know the deer will be out feeding .