Tags/leg bracelets for my chickens

[mortie]

I used small hair ties. Not the super tiny ones but kinda the next size up.

 

[Gavwyn]

I've found that permanent markers, even the Sharpie brand, aren't resistant to UV light, so the lettering will quickly fade on the zip ties; however, you can always string a colored plastic bead through the zip tie before you apply it to the chicken's leg as another ID system. Good luck!