Birds and mammals can become tangled in it. They get roped to death. Plastic bags-Discarded bags are mistaken as food by some animals. Empty bottles and cans-Food remnants and smell attract animals. They can become trapped inside empty containers.
Broken bottles can cause cuts.
Carving initials in trees. Driving vehicles over fragile environments. Removing plants from the environment. Destroying bird nests. Illegally killing, collecting, harassing, or possessing wildlife.