Magellanic Oystercatcher

Identification

The Magellanic oystercatcher is a striking wader measuring 42–46 cm in length, with males weighing around 600 g and females slightly heavier. Its most distinctive features are its long orange beak, bright yellow eye surrounded by a yellow eye ring, and yellow legs. The bird's plumage is boldly patterned: the head, breast, back, wings and tail are black, contrasting sharply with white underparts and white feathers on the inner wing visible in flight.

While superficially similar to the American oystercatcher, the Magellanic can be reliably distinguished by two key features found in no other oystercatcher species: the yellow bare-skin ring encircling its eye, and white secondary feathers. It is also the only New World oystercatcher with a black rather than brown back. The bird's call is a repeated high-pitched "pee-pee" similar to other oystercatchers.

Range & Habitat

The Magellanic oystercatcher is native to the southern tip of South America, with a range spanning southern Argentina, Tierra del Fuego and nearby islands, and the Falkland Islands. Its status on South Georgia and the South Sandwich Islands remains unclear.

This species exhibits seasonal habitat preferences: during breeding season it inhabits upland grasslands inland, but moves to coastal environments outside the breeding period, frequenting freshwater lakes and sandy shores.

Behaviour & Diet

The Magellanic oystercatcher's diet varies seasonally according to habitat. During inland breeding season, it feeds primarily on earthworms and insect larvae, using its sharp beak to probe soft ground and mud. When at the coast outside breeding season, it forages for mussels and limpets, and also feeds on crabs and polychaete worms.

When threatened near its nest, this bird employs several defensive strategies to protect eggs and chicks. These include false-brooding, where it moves to sit on an imaginary nest site to misdirect predators, and tail-flagging—a ritualized aggressive display involving raising both tail and wings. It also produces a distinctive peeping call to warn off intruders.

Best Time & Places to See It

The Falkland Islands and southern Argentina, particularly Tierra del Fuego, offer the best opportunities to encounter this species. Coastal areas during non-breeding seasons and upland grasslands during breeding season are the most productive habitats to search.

Photography Tips

The Magellanic oystercatcher's bold black-and-white plumage and bright yellow facial markings make it highly photogenic. The bright orange beak and yellow eye ring provide excellent points of focus and color contrast. Photograph birds in flight to capture the distinctive white secondary feathers and inner wing patches. During breeding season, upland grassland habitats may offer opportunities to photograph defensive displays such as tail-flagging, though care should be taken to avoid disturbing nesting birds.