Thank you, Ann... imagine how interesting it would be to see if the paths of Kai and Karl II intersect... how they behave when they meet in the spring, whether they hunt nearby, whether they meet during migration... Probably, in order to study this behavior, you need a lot of rings for children, transmitters and be able to track... Maybe someday people will invent cheap ways - for example, chips...
people have learned to track phones, it can't be that they haven't come up with some indicators. It would be great to mount them with a ring as a micro SIM card...