Oostvaardersplassen, a nature reserve in the Netherlands.
The Oostvaardersplassen were created to provide a place for geese to feed. It takes deer, cattle and horses to prevent the development of a wood. Geese like grass short and it is why these animals were released in the Oostvaardersplassen
In the past there have proposals to provide more room for the animals because in winter they die in huge numbers. Providing room is not possible by an unending cycle of adding new grounds to the Oostvaardersplassen but it is possibe to make a connection to the Veluwe and extend this to the nature alongside of the Dutch rivers connecting even further to Germany. This plan that was actively developed was at the last moment shot down by politicians.
Given that "animal lovers" are bringing hay feeding some of the animals, it resulted in such an upheaval under the animals that Staatsbosbeheer prefers to feed them themselves. In the past they pronounced what they would do when pressed. They will shoot the animals and bring the numbers down by half maybe even more. Nature will respond positively after such a catastrophe. It will invigorate nature and make the Oostvaardersplassen less of a meadow.
Natural predation like by a pack of wolfs would make a difference. Wolfs are finding their way into the Netherlands, they only have to find their way to the Oostvaardersplassen and call it home.