This was way harder than I expected it to be. Much respect to @wev and other hummer shooters!
Hummingbird by p.g.photo.graphy, on Flickr
If you want to embrace frustration, choose hummers -- they will laugh at your efforts
I buy powdered luck in bulk now and always carry five or six ounces in my pocket
That is so true. They will frustrate you like nothing else. But then you a full of a happiness when you nail a shot.
I never tried the powdered luck. I will have to look for it around me.
The only bird worse is the kingfisher. They take a perverse joy in allowing you to sneak up and then fly just as you are getting focus -- and they laugh out loud as they fly!