Which bird has the best talon structure for walking on muddy ground?

Why do butterfly's migrate? When do mockingbirds learn to fly? What paint mixture make canary yellow? Why do cockateils make so much noise in the morning? When a duck dives under water its inner eyelids automatically raise to cover the duck's eyes. In this case water acts as? How does the Male osprey provide food to female? Is it legal to eat penguins? How do you pronounce egret? Where do birds invest their money? Name the popular Donald born in 1934 and having a girlfriend named Daisy? Where do emperor penguin's live? What makes birds unique? What does hummingbird do at winter? Which wading bird was known as sea pie? What is the purpose of puffing up the feather? What adaptations to the desert do turkey vultures have? Who has the baby penguin the male or female? What is the symbiotic relationship between flowers and bees? What do they want to do to save berded vultures? Does an owl lay eggs?