Catscratch
5 year old buck +
Using the term somewhat loosely for any fixed-lens "megazooms" on the market... as long as they are fixed-lens (not interchangeable lenses) that are of the point-and-shoot variety they're going to have the same general limitations as relates to fixed / small sensor sizes that struggle with low light. And I'm not advocating they aren't awesome... just that they do have few weaknesses while also awesome abilities. They're WAY cheaper than higher-end DSLRs with purchased long-lenses as well. The P900 model DJN referenced can be picked up for about $400. Buy a stand-alone lens with the same abilities as his P900 to go on a DSLR and you can easily pay in the $5,000 to $10,000 range.
Also meant to make the point that once you get to the 65x zoom level or so, REGARDLESS of camera type heat-waves, tripod steadiness, etc, become an issue. Great thing is that as long as you understand the weaknesses and can live with them, you can capture some crazy long shots for just a few Benjamins -- something that wasn't possible until the last decade or so.
I take a lot of pics with my phone (Note 9) attached to a cheap spotting scope. I love the zoom on it but they aren't quality by any means. I would love to have a more clear or crisp image than what I'm getting. I've considered buying a better spotting scope, or something like the P900 DJN brought up. I won't spend a lot of money. $500 is probably my limit. Suggestions?