According to superstition, a bird pecking at the window means death for someone in the home [source: The Diagram Group]. Fortunately, ornithologists have a slightly more scientific take on this behavior.
"Birds of the air" is a negative symbol. Revelation 18:2 really nails it down: And [an angel] cried mightily with a loud voice, saying Babylon the great is fallen, is fallen, and has become a habitation of demons, a prison for every foul spirit, and a cage for every unclean and hated bird! What are the "birds of the air"? Demons! Your parrot's poop is a window into its health. You will have ample opportunity to examine your bird's droppings during the course of the day. Your bird's droppings should be fairly consistent on a day to day basis. In the morning there may be a very large dropping deposited as the bird's digestive system...