How big is a swans eggs?

Do ostriches have web feet? Do turkey's have two hearts? What size is an adult owl? What origin has the word timneh? There's a dead bird that died in the wall of my house Does anyone know how long it will stink if we don't do anything about it? What are the ectoparasites of the domestic pigeon? How do you know a seagull's age? What does mocking mean? What animals have two legs and wings? Do woodpeckers peck things that are not wood? Is peacock bass fishing legal? What animals eat seagulls? What do love birds symbolize? What also looks like a penguin? How can we help an albatross not be endangered? What kind of light bulb do you use to keep a chicken egg warm? What are vultures pretedors? How can one obtain Bobtail insurance? What is the one thing that bud saves to remember his mother? Can goose lay a eggs?