What can scientists hope to learn from analyzing owl pellets?

Scientists hope to know more about how the other animals are faring in the environment. They used the owl pellets to learn more about the environment and the area where the owls are living. Since owls are raptors, they know that these birds are predators and tend to eat their preys whole. If they see more animal fur or bones inside the pellet of an owl, they can tell that the animals living in the area are faring well in their environment.