A couple of years ago I saw a baby hedgehog out on a grass verge during the day. I went back to check it out and move it. It was starving and on deaths door. Any fleas had abandoned ship as they do when they sense an animal is popping it's cloggs!
Anyhow I noticed a ring of scab round the hedgehogs neck and it turned out to be something fast round the hogs neck, so as it had been growing it was decapitating it. I bought it some minced beef, took it home and cut the object being careful to slide it round under the skin otherwise it would have ripped a big ring of flesh off where it had grown over it. The plastic cord looked like the bit left over on a strimmer and it had been thrown away (probaly council workers).
Anyhow, got the hog eating but it was touch and go if it would live for the first few days. After it had started to recover I was going to release it but it was too late in the year for a little hog to survive a hibernation. I phoned a rescue to see if they'd take it in which they would but they wanted a tenner donation first FFS!
I kept myself instead and put it in a run in the garden. It grew as big as a football before I released it in the spring.
Regarding plastic waste etc, imo some anglers (i'd say quite a lot of them) are
as bad as the rest of the polluters (worse even) with the rubbish and line they leave behind. The amount of birds i've seen tethered to trees etc or hobbling round with swollen amputated or half amputated legs through disguarded mono is disgusting! I've even seen birds hanging from trees with mono round their legs....
.
Imo a large portion of anglers are one of the waterways worst enemies!