GPS rings.

Very clever those Hal, price would be heavy I would have thought, had a quick look on google and can't find the price of them, amazing to see the flight path of the birds though, strange how most of them went for the line of the mountains

THats amazing Hal I’ve always wanted to see something like that, you can see they don’t like crossing water. And it’s amazing that 4 out of five flew northwards towards that ridge, I wonder why.
The blue one is the one you want

wont be long b4 these are available for all to purchase ...be great to track yer birds when racing eh

Vert interesting Hal

its just brilliant and you can see which pigeons have the best brain and orienteering skills

with this system you would only need a few pigeons as this is the fastest way of sorting out your best pigeons

might find out where all the lost birds end up.........