Zip ties are for idiots and lazy people to use on their birds. As has been mentioned, it's simply dangerous and it's also unprofessional. If something happened to you, would you be in a position to tell someone else to watch the birds so that the zip ties don't grow into the legs of the birds? What if you weren't around for a month while your birds were growing and your thoughts were more on the 'family emergency 5 states away? See where this is going?
Get the correct type of leg bands or wing bands and just do it the right way the first time. Ignorance spreads ignorance and when you listen to someone telling you zip ties are 'okay', the ignorance just gets worse. (not ragging on you, I just have a real problem with people not wanting to do things the proper way the first time)
Get the correct type of leg bands or wing bands and just do it the right way the first time. Ignorance spreads ignorance and when you listen to someone telling you zip ties are 'okay', the ignorance just gets worse. (not ragging on you, I just have a real problem with people not wanting to do things the proper way the first time)