Incredible, actually. There will be some "stuff" about the "jewelry" and how some of it is attached, so be prepared to take some "hits" here. Absolutely gorgeous birds. I totally realize that these aren't your birds, but since you posted the link, you will likely get asked the questions. Just giving you a heads up.
Those are sure for some handsome pigeons and what a jewellery If that cock bird with the neck piercing gets in a fight, he sure has some "weak points"
Versions of this game are played often in India, its all about flying your birds and bringing in another person's bird to your place. Yet I haven'y heard fierce versions like these in which even birds can drop dead !!!