Jeremy
Foxes are defined as Crepuscular animals. Meaning creatures who are most active during low light. The times that flyrod mentioned(1st 45 minutes of light) are still pretty low light. When he said, with snow cover they can be hunted all day, there is a reason for that. They are hungry, snow covers their buffett and makes them hunt harder and alot of times those bellies stay empty, so they continue to hunt during the day and during less frigid temperatures, because they have to conserve energy/calories for warmth.
Twilight(early and late) and after dark are the best times to be succusseful on fox. Once it gets dark and the Red Fox goes on the hunt, he will venture out into more open areas and hunt hegderows, ditches and ravines and briars along the edges of fields where the sun can penetrate and cause undergrowth that holds his buffett of mice, voles, moles etc. Reds are a more predominantly an open meadow, riverbottom hunter,cropfields unlike the woodland fox, the Gray, who is at home in the woods, pine thickets and cutovers.
In an area of higher concentration of population where there is pressure to find food, you may take one during the day. But if you want your numbers to be consistently above average, try the night life for calling foxes. It works more often.
I am no expert, but I have killed my share over the years, as has Flyrod who lives just north of me an hour or so in some really prime Red Fox country. But I did sleep at a Holdiay Inn last night.
