Almost all deer are culled. Alot of koniks horses were brought to Spain , still some around i believe. And there was also a primitive form cattle (Heck cattle).An attempt of breeding breeding back the aurochs. It was a lost case from the start.
Oostvaardersplassen .That didn´t exactly worked out according theire plan. Most of the red deer had to be shot. The place was a graveyard in the end.https://en.wikipedia.org/wiki/Oostvaardersplassen