I bought some leg rings, but found they weren't the right size (too small), and extremely difficult to put on. I am alone, so trying to hold a bird and tag it is challenging.
I take birds from my brooder, move them into a juvenile run, and then into my main flock. The settings are at least 24 days apart, so there is a noticeable difference in size when I move them from the juvenile run to the main flock. That is where I expect to tag them. They are typically 12-14 weeks old at that point, and again, won't stay there for much more than a year total.
What is your preferred tagging method, with a link to a product would be even better.
FWIW, my project breed is a cross between BCM and (gen 0) Red Sexlink/BCM crosses. They are not small birds, with pullets typically being 6-8lbs at 6 months. Oh, and I only need to tag pullets.