So the release of My First Comedy Album, Kelly's (not my), er, first comedy album, while a departure, wasn't exactly a surprise. I wouldn't exactly call it "kids' comedy," but in its good nature, curse-free patter, and being devoid of first-date and airplane food jokes, it's certainly kid-adjacent.
You could stream the entire album to see if it makes you or kids chuckle or guffaw or chortle -- man, those are some great words -- but what if you only have about 40 seconds? Then I'd recommend his "Bird-Watcher Watching" bit, helpfully animated by Kelly himself, below.
Billy Kelly - "Bird-Watcher Watching" [YouTube]