A fox's winter home is called its den. Dens can be dug underground (often at the base of a tree) or can be found inside of a cave, under a pile of rocks, or even within a hollow log.
If your question is what does one call a collection of foxes, the answer to that is a troop, earth, or skulk.
Castle, stately home, mansion, country house, manor, and so on.
Otters will build their home anywhere, even in the base of a tree that hangs over the creek. The home is called a Holt regardless of where or how it is made.
Electronegativity dif. - dEN 0 > dEN > 0.6 ----> covalent (I think this is what you mean by "similar") 0.7 > dEN > 1.6 -----> polar covalent 1.7 > dEN > 4.0 ------> ionic
Van den Berg is a family name that has Dutch, Afrikaans and Flemish origins. The name means from the mountain or from the hill.
They have been known to travel 5 to 10 miles from their den . They, like other nocturnal hunters, will quite often travel along train tracks for protection !
a swift foxs habitat is a burrow underground or a den on the roadside or by a fence
a brush
Osteosarcoma Cancerr.
are red foxs in alberta
Silver foxes are often called gray or grey foxes.
They are called lairs, dens, burrows or earths.
the day they are nocturnal for the most part
So that they have somewhere to live and to raise their kits.
An otter's den is called a holt or a couch.
den
It is called a lair, a den, a burrow or an earth.
A bird-watcher's den is called a HIDE.