Please do not build apps that allow people to specify the locations of wild animals, even in parks. Poaching remains at extremely dangerous levels, and every wildlife park I know of in vulnerable areas specifically asks visitors not to use those kinds of apps or groups because it gives location information to poachers.

Some wildlife parks have ‘daily sightings’ maps at rest stops and lodges, but those are monitored by park officials who remove the most at-risk animals and are cleared at least daily.

Aside from that, apps like this encourage bad behaviour from visitors in parks that allow self-driving, as dozens of people rush to the next leopard, lion, etc sighting. That not only creates its own risks but ruins the experience for everyone else.

In short, don’t do this.