So they don't allow it because they interfere with wildlife. I get it. But I'll get on my soapbox.
WE are wildlife too. Just like any other sentient animal on the planet, we eat, sleep, drink, replicate, urinate, get old, and die. We are just gorillas that have evolved fast enough to have a written language and use tools.
So do we care if other animals interfere with other animals? Do we get upset if a wolf kills and eats a deer?
Look, I get it. I'm all for protecting the environment and not making animals go extinct. But out of all the things that us "humans" do to interfere with nature, flying a small drone is probably the lowest on the totem pole. The only things it's going to do is make other birds want to attack it. And 10/10 times, the non-plastic bird wins.
Us humans have really big egos. We think it's our job to police the world and keep wildlife in check. In reality, we are just existing like any other animal. Our prime directive is to survive and replicate before we die.
So this is just a rant. If drones really do cause great harm to wildlife, sure, ban them from parks. But I've never seen any data at all supporting this claim. Ok I could maybe see a drone scaring wildlife and making them run or fly away. But how is it REALLY any different than a predator scaring away wildlife? Because we are "humans"? So is it fine then if the mere act of walking or running through a park scares away wildlife? Lets just ban all humans from parks. Problem solved.