Sometimes humans work at restoration of places where humans have chased non-human nature away--paved, poisoned, jostled, noise--something where the place is now way too simple.

Sometimes when humans work to restore a place, they find it's complicated, harder than they expected, longer than they expected. Success is sometimes not in sight, and the main thing learned is that much more needs to be learned.

But it is not unusual for restorers to be surprised at how fast restoration happens. Nature zooms past there expectations. The Green Man re-arms and re-legs himself and is all over the place quickly.

Clean up. Get out of the way. You never know.