Shoebill

The shoebill's bill really does resemble a wooden shoe: an enormous structure ending in a sharp, curved hook, with sharp edges that help it catch and eat prey. Its main food is lungfish, along with other fish and some amphibians and reptiles, and the bill is built to grab and hold them. That bill explains the bird's famous stillness. It hunts mostly by standing and waiting or wading slowly through African wetlands, then lunges forward in a full-body collapse onto its prey. It cannot collapse again straight away, so each strike has to count. Usually silent, it often clatters its bill instead.