We have a bird feeder hanging in the back several feet from any trees. It weighs several pounds due to batteries and a motor that spins the perch if squirrels get on it. It is hung from a rope about 3 meters above the ground by a sturdy carabiner clip.
This morning the feeder was lying on the ground. This is the second time it has happened. The only way to unhook it is to grip the spring clip on the carabiner and lift the feeder support wire out of it. You need hands with a strong grip to do that. We suspect raccoons are the culprit.