Diet Owls need complete animal food, including the bone and fur which are regurgitated as pellets.
Philosophy is not about spoon-feeding received facts which must be duly regurgitated in essays and exams.
The food requirements of adult flies are mainly for carbohydrates which are taken in liquid form having been dissolved by regurgitated digestive juices.
Regurgitated blood can stain the feathers around the beak and neck.
Unfortunately, its only the remains of a mouse, as regurgitated by an owl.