giving bird droppings their characteristic white appearance. Seabirds produce the whitest droppings, often referred to as guano, which some species, like cormorants, even use as nesting material.

Bird droppings are a mixture of waste from birds' digestive and excretory systems, often reflecting their diet and physiology ...

Are bird droppings a life-saver? Yes, goose poop contains a compound that inhibits the growth of human melanoma and ovarian ...