Animals reacting to the uap

(Second time posting this bc the first one got deleted for some reason) For those watching the liberty wing stream, why is it when an orb /uap pops up the dogs nearby start to bark and howl? This is seriously starting to freak me the fuck out and it sounds like something out of a movie but unfortunately it's not. This isn't a satirical post or trying to be funny, go look at his streams.