It is not uncommon to see birds clean the backs of livestock – cows, Rhinos, sheep, and now, donkeys. Animals live in a symbiotic world. Donkeys can be skittish, but when Meg hops up on their backs, they stay perfectly still, and the process scratches their backs and cleans off mud and insects. Meg hops up every morning, and the donkeys seem to almost expect it. It is a very natural behavior.