Anillas carbono ninfas Grabadas con año y numeradas 5 mm

5 mm closed carbon rings for marking the canaries of the year 2025 with the color of the year of the federation.

The rings must be placed on the legs of the birds before the eighth day after their birth, it is very important to place it in that period because the joint of the leg is still elastic and its ossification is not yet complete.

We should never try to place closed rings on birds over 8 days old.