Aw thats bad luck buddy. Sorry to hear that. We've had very good luck with them as opposed to Jiffy. I have some pretty old chickens that all still have their original wing bands. Just have to get a good crimp on them when you apply them. I personally don't like leg bands on adult birds as they more commonly get lost from our experience.I regularly find zip bandsthat adult chickensguineas or turkeys have clipped off.