Deer modern Germanic languages save English and Scots retain the more general sense: for example, German "Tier" and Norwegian "dyr" mean "animal". For many types of deer in modern English usage, the male is a "buck" and the female a "doe", but the terms vary with dialect, and according to the size of the species. The male red deer is a "stag", while for other large species the male is a "bull", the female a "cow", as in cattle. In older usage, the male of any species is a "hart", especially if over five years old, and the female is a
Red deer of these populations have been supplemented with deliberate releases of deer from parks, such as Warnham or Woburn Abbey, in an attempt to increase antler sizes and body weights. The University of Edinburgh found that, in Scotland, there has been extensive hybridisation with the closely related sika deer. Several other populations have originated either with "carted" deer kept for stag hunts being left out at the end of the hunt, escapes from deer farms, or deliberate releases. Carted deer were kept by stag hunts with no wild red deer in the locality and were normally recaptured after the hunt and