The sword-billed hummingbirds are the only birds whose beaks are longer than their body; in fact, Its bill can reach up to 4 inches (10 centimeters) in length, while its body measures only about 4 to 5 inches (10 to 13 centimeters). The length of its bill is an incredible adaptation for its feeding habits, as it specializes in feeding on long tubular flowers with a high nectar content.