Interesting that the last question is "still vs animated" thumbnail but doesn't ask for feedback as to why you pick your answer My answer would be "still over animated because animated makes it look like an AdSpace to take me offsite"
@Zaboem likely with the source. I have heard it stop making sounds before but you need to be super close to the pond for that to happen. I've also heard it sound like it's coming from the far end of our yard so the bugger moves!