Whether it chisels, pecks or cracks, a Bird's bill plays a big part in what unique Ecological Niche it will fill. With sturdy conical bills, a Grosbeak crushes the hardest seeds. Using the notch on a hooked beak, a Falcon snaps the neck of prey. Limpkins slide their long curved bills into snail shells and, with spatula-shaped mandibles, Spoonbills seine southern waters.