no
Keep the light on constantly. Use a red light. Foxes (most animals) can't see red very well at all. To them it looks like a bright grey hole. You are hiding behind it. The light is your camo and your cover. If you don't shine constantly, approaching coyotes or foxes can see you.
Eagles regularly prey on foxes (see image above) as well as some larger predators such as bobcats.
Well since foxes are known for adapting to new enviorments, they can pretty much be found anywhere in the USA, austrailia, and some of south America. But trust me once foxes see you they run, so you bairly ever see them!
Black foxes are actually red foxes with mostly black fur. See the image above.
Yes, as well as most other nonprimate mammals can: just blue and greenish-yellow (they cannot see red like primates do).
Foxes will consume snakes, and lizards, as well as frogs and salamanders.
Gray foxes are omnivores. They eat plant matter as well as animals.
Yes, Arctic foxes are secondary consumers as well as omnivores.
Predators.
they attack them
No. Foxes are eat meat. Don't eat mosquitoes. As well as other insects.