200 Canary Leg Bands Society Finch 2.9 mm Rings 10 color Plastic Non

200 pcs bird leg bands, Non-Split mix color plastic , suitable for small size birds such as canary , socity finch, zebra finch, gouldian,goldfinch, etc...

These bands are a common size for birds that are in the 40–60 gram weight range, though exact fit can vary slightly depending on individual species and breeding lines.

If you're banding birds for identification, it's always good to double-check with a size chart from a reputable avian supply source or breeder guide specific to the species you're working with. 

Find the diameter of your bird’s leg. The easiest way to do this is to use a piece of string. You might want to have one person hold the bird, while another holds the string and measures.
Step 1: Place the tip of a string onto the bird’s leg and hold it in place. Wrap the string around the leg until the string reaches the tip on the end of the string you are holding in place.Step 2: Mark the point where the string touches the tip with a marker.Step 3: Stretch the string out across the length of the ruler and then locate the mark on the string. Read the measurement on the ruler. This tells you the circumference of the bird’s leg. For this example, let us say the measurement is 34.54 mm.Step 4: Divide your circumference measurement by 3.14. Given the example of a 34.54 circumference, the diameter of the leg is 11 mm. You can then take this diameter to our bird band page, and see that our Size 14 is 11.13 mm, and would be the best size for your bird.