So I bought some numbered bands. How old do the birds have to be before I can put them on before falling off? Been dieing to get them on so I can manage them better. Had colored zip ties but they are to small now. Also these are curled up plastic so how do I open them up to get them on? This is what I have.
http://www.cutlersupply.com/cart/index.php?main_page=product_info&cPath=6_89&products_id=568
http://www.cutlersupply.com/cart/index.php?main_page=product_info&cPath=6_89&products_id=568