Bugs don't get much cuter than this guy. You would swear you have spotted a very small hummingbird. Their aerobatic abilities are about the same, able to hover, back up, zip forward. You can see, it has an extremely long tongue. And, unlike hummingbirds, it has antennae. If approached cautiously, they are not spooky, but they don't tend to sit in one place very long, so it can be hard to capture one on film. I did have one rest on a leaf one time which gave me plenty of time to get some good photos. It is a moth and not a bee, so there is no danger of being stung.