 They usually extend to and more, and deer which live there belong to the small-bodied, hill-dwelling race of red deer typical of northern Scotland, which have adapted to life on open hills after the loss of woodland habitat.Most deer forests are not fenced or enclosed in any way, and the deer can move freely across large tracts of hill country.Boundaries, referred to as "marches", are usually marked by a river, stream, ridge, shoreline or similar natural feature.