Do u know that the Ostrich is the bird that lays the largest eggs ? yeah, its a real fact that the Ostrich is the largest living species of bird and lays the largest egg of any living bird. The ostrich’s are farmed around the world for its feathers Which used as feather dusters. An ostrich’s egg weight 3.3 pounds & it is the largest single cell that exists today on our planet. The egg looks about the size of a medium cantaloupe, just like the dinosaurs larger eggs. The ostrich’s egg vary from white to yellowish white & its hard shiny surface is pitted with superficial pores of various sizes and shapes.