Crows are called [[1]] because they eat both flesh and plant products.

Crows are called omnivores because they eat both flesh and plant products.

Omnivores are defined as animals that feed on both animals as well as plants and their products. Crows are omnivores because they eat insects, small animals like rats, etc apart from fruits and vegetables. 

Some other examples of omnivores are bears, rats, men, etc.