what are their notable characteristics?
They  usually together in pairs or small groups consisting of families, such as a mated pair and their young, or a male with several females having kinship ties.Urban red foxes are most active at dusk and dawn, doing most of their hunting and scavenging at these times. It is uncommon to spot them during the day.
Red fox
Urban red foxes are most active at dusk and dawn, doing most of their hunting and scavenging at these times. It is uncommon to spot them during the day
do red fox change color in the winter Yes,  A typical colouration in red foxes usually represents stages toward full melanism, and mostly occurs in cold regions. where is it found? The entire Northern Hemisphere including most of North America, Europe and Asia plus parts of Northern Africa.
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Red fox [SEP] Behaviour
Urban red foxes are most active at dusk and dawn, doing most of their hunting and scavenging at these times. It is uncommon to spot them during the day, but they can be caught sunbathing on roofs of houses or sheds. Urban red foxes will often make their homes in hidden and undisturbed spots in urban areas as well as on the edges of a city, visiting at night for sustenance. While urban red foxes will scavenge successfully in the city (and the foxes tend to eat anything that the humans eat) some urban residents will deliberately leave food out for the animals, finding them endearing.