Steve, we got our first hb today! We're in western MT. It zipped fast when we weren't paying attention, so not sure what it was. We put the feeders up this eve, maybe we'll know tomorrow. But it's supposed to rain and I'm gone next week so maybe not
SaltedFig, hummingbirds don't sing. They mostly chirp, and they can also make trill noises with their tails. They're very cool to watch -- hope you get to some day! What part of the world are you in that you haven't already?