Sheathbills
Sheathbills
Chionidae
Antarctica’s Feathered Scavengers: Sheathbills (Chionidae) are the only land birds native to Antarctica and its surrounding islands. These hardy, pigeon-like scavengers are often seen patrolling penguin colonies, searching for scraps, eggs, and even carrion. There are two species: the Snowy Sheathbill (Chionis albus), which has pure white plumage, and the Black-faced Sheathbill (Chionis minor), found on subantarctic islands. Unlike most Antarctic birds, sheathbills lack webbed feet, making them better suited for walking than swimming. Opportunistic feeders, they eat anything from krill and fish to penguin droppings, giving them a reputation as nature’s cleanup crew. Their name comes from the tough, keratinous sheath covering their nostrils, which protects them from the harsh, salty environment. Despite their scavenging lifestyle, sheathbills play a vital role in Antarctic ecosystems. With few natural threats besides skuas, their populations remain stable, ensuring these resilient birds continue their unique existence on the frozen edges of the world.