I have been watching this thread to see if the chicken passes the nylon paracord. My golden retriever Opie pulled a 36 inch long section of nylon carpet fiber and swallowed it after another dog barfed some ham onto that section of carpet. I saw a couple of short sections lying around that I quickly got rid of. He threw up a few times, and would not eat for a couple of days. The vet did xrays, and could not feel anything in his belly, so we thought everything was fine.
Fast forward one month, and poor Opie ate only small meals, but acted fairly normal. Then he vomited up the 36 inch wad of carpet cord. I saved it in a plastic bag for the vet to see, and he was amazed. It apparently stayed in the stomach all that time, and gastric acid had no effect on it. Chickens’ GI tracts are so different, so I hope the chicken survives this.