Animals that feed on the excrement of dead animals are called fauna
The answer is: sweeper
Animals that feed on dead animal waste are among the important creatures in the life system, as they convert the remains of dead animals into materials useful for the environment and diet.
These animals are called “scavengers,” and they include many diverse creatures such as flies, beetles, worms, slugs, sandpipers, and others.
It can be said that these animals are very efficient in the use of accumulated organic waste, and help to keep nature clean and healthy.
Therefore, we must respect and care for the presence of these animals in our environment, and not view them as mere harmful insects.