Hello, can someone explain how banding works. Do you start with small and then change them as the chicken grows? I know some said that they use some kind of tie. Others said velcro. And then others talked about the standard kind that you get from poultry supply. I am not sure the best way to track the chicks! And how often you need to change the bands. Do you go through about 3 sizes? Or is there one that grows with the chicken. Do you put a temp on until they grow up? thank you!