How often should a parakeet preen itself?

Does a peregrine falcon use external fertilistaion? What does the paragon falcon look like? Do bluebirds nest in trees? What color does calypso look like? What do you need after the parrot eggs hatch? Do owls only come out at night? When was a Bob White Quail made the state bird? What do you feed a newborn cockatiel? Why can't you have a bald eagle? How are hummingbirds helpful to flowers? Is there any ostrich farms in CT? Penguin egg life? What is the diet of the Great Horned Owl? Why do penguins wings become so feeble? When did Nelly Furtado release 'I'm like a bird'? Do mallard ducks eat cattail plants? What birds demonstrate adaptive radiation? Are ostriches from Australia? How fast can teal fly? Are ostriches in Brazil?