Wow! The things we birds do for research. I guess it's no worse than what people go through filling out their tax or census forms, only the U.S. Fish and Wildlife Service and licensed banders are way more concerned about our well-being than the IRS or the Census Bureau seem to be about people. You can see lots and lots of photos of some of us chickadees getting little transponders put on our leg on Laura Erickson's Flickr page.
Banding gives people a lot of important information that makes them understand a lot more about us. I don't know, though--sometimes I wish they'd just try the Vulcan Mind Meld.