Why does a pigeon have an exoskeleton?

Why are toucans dying? How do you cut cockscomb? What type bird rhymes with Don? Is Minnesota where the pelican river is located? What does Indian red looks like? Why does the same bird keep pecking your window? What are the organs that come with a turkey? Why is the southern cassowary considered a keystone species? Why do wood peckers peck? How does the Robin's beak help it gather food? Where do galapagos peguins live? What part of the world has most bat's? Breathing organ of a parrot in one word? What is the central cylinder of a feather? What is the difference in a white dove and a black dove? What other animal lives in the same habitat as flamingos? How often do you clip a parakeet's nails? How do you tell if a turkey is a boy or a girl? What do gibbons eat? Why do we need to conserve the kakapo?