Thanks for your replies! The necklace is REALLY long on that kid - she's only nine and is very small. I don't know what the terms are in English for what I used .... maybe a crimp clasp thingy (
) and then a jump ring attaching it to the chain.
After I made the necklace, I had to order more feathers - the kids loved them and we all went crazy with feather earrings and necklaces