Those are nice finds Treble. Each state is different as far as the certificate and info goes. Here in Illinois, we actually have some bands that are "reward" bands. If you or a hunter find or harvest a bird with a band, some say reward $ 25.00 $50.00 and $100.00 just to coax you into calling in the band so they can track the bird. Of course now that our state is so broke, i'm sure they are issuing I.O.U.'s with those, as they are with winning lottery tickets ! How sad. I have also found a few pigeon bands, and there is a site you can go to type in the info and find the homing pigeon clubs and owners info, so you can send them an email to let them know you found the band. Guess some homing pigeons have broken GPS systems and cant find there way back. The owners usually appreciate it, but they dont issue certificates.