"Birds are metabolic dynamos, requiring food at regular intervals and in significant amounts; few old sayings are as completely false as to claim that a finicky person “eats like like a bird.” If I ate, by proportion, the same amount as a chickadee, I would have to consume about fifty pounds of camarones every day, and even raptors, with their somewhat slower metabolism, must eat about 10 percent of their weight to stay alive."