I would agree that Rockefeller State Park Preserve is more of a borderline case, as it is more managed and has more amenities when compared to some of the other locations in question. I would not change it from leisure=park without getting consensus first.

However, I think that consistency in this case is undesirable, since we want to be able to tell the difference between a leisure=park (is landscaped, has amenities, and is a good gathering place for miscellaneous recreation), and a place that is more suited for hiking or nature observation.

Some examples of what I would consider a leisure=park:
- Croton Gorge Park
- Glen Island Park
- Kensico Dam Plaza
- Central Park
- Flushing Meadows–Corona Park

Some things I would consider a leisure=nature_reserve or otherwise not a leisure=park (all of these have been changed from nature_reserve to park):
- Crawbuckie Nature Preserve
- Hardscrabble Wilderness Area
- Brinton Brook Sanctuary
- Cranberry Lake Preserve

As for tags that would be consistent between all Westchester County parks, I would support `operator=Westchester County`, and possibly `boundary=protected_area`. I would be open to other suggestions here, but I do think that the leisure value should be allowed to vary so as to allow data consumers to treat the locations accordingly.

Either way, as jmapb said, these sorts of places had already been tagged as leisure=nature_reserve by a variety of mappers prior to being changed over the last few months. If we want to leave things as-is until we reach consensus on which tags to use, then I think the tags should be set to what they had been prior to the retagging here.