by marie83 » Thu Mar 28, 2013 5:35 am
Tatooing really isn't worth it, don't go there plus it wont necessarily be visible without a lot of restraint of the bird.
Go with the mini microchips if anything (not the full size ones) but make sure a really really experienced avian vet does it.
Other than that you can get split rings, but these can be just as easily removed and occasionally will irritate an older bird who isn't used to wearing one.
Take clear, close up photos of anything that may identify your birds such as unusual markings.
Not a lot else you can do I'm afraid.