I read a bit about this in another post, but my situation is a little different. This string came from the rug I placed her on as I was changing the brooder chips. These strings are pretty long and a bit thicker than thread. I am severely worried about the length of it and her having trouble passing it. I read that crumbled food may bring it, oil may help with lubrication, but again, I'm afraid of the length. I am so very worried as I really am only raising 4 ducklings. Losing one of my ladies would be a very huge loss. Can anyone please help?