What do plug-ins do to Budgies?

What is the name for a stone filled muscular organ used by birds to grind up swallowed seeds? Will a peacock always return home? Do pigeons lay eggs or give birth to their young? Where do puffins live in Scotland? Should the fuselage be longer than the wingspan? Where do the kuaka bird live? How do owls protect their young? Do owls eat their food whole? Is it safe if you find a dead bird in a pool and take it out and go near the pool? Can a golden eagle be a pet? What animals lay big eggs? What does this mean A bird in the hand makes it hard to blow your nose? Is there any Vultures in Alberta? What kind of nest to hawks make? What is cumiform? What noise or sound does a rainbow lorikeet make? Can peacock's fly? What eats turkeys? What altitude do Canada geese fly at? How did Aristotle group organisms such as birds bats and insects?