Peruvian Tern

Sternula lorata

The Peruvian Tern (Sternula lorata) is a diminutive and critically endangered seabird, often considered one of the smallest tern species globally, measuring just 22-24 cm in length with a wingspan of 45-50 cm and weighing approximately 50g. Its striking appearance includes pristine white underparts contrasting with pale grey upperparts, deeply forked tail, and distinctive black primary flight feathers. Breeding adults sport a prominent black cap, while non-breeding individuals and juveniles d...

Habitat

Exclusively found along sandy beaches, open coastal plains, lagoons, estuaries, and offshore islets, this species is strictly confined to sea-level environments of the Pacific coast of Peru and Chile.

Diet

Primarily consumes small pelagic fish such as anchovies (*Engraulis ringens*) and sardines (*Sardinops sagax*), supplemented occasionally by small marine invertebrates, all acquired through agile plunge-diving from flight.

Behavior

The Peruvian Tern is a diurnal species, spending its days actively foraging and roosting communally on open stretches of sand or shell banks during non-breeding periods. Its foraging strategy is characterized by elegant plunge-diving; it flies low over the water, hovers briefly upon spotting prey...

Range

The Peruvian Tern's extremely restricted range encompasses the Pacific coastlines of Peru and northern to central Chile. Breeding colonies are fragmented and highly localized, primarily concentrated in specific coastal areas of Peru such as Pucusana, the Paracas National Reserve, and the Mejía La...

Conservation Status

Critically Endangered

Fun Facts

- The Peruvian Tern is classified as Critically Endangered by the IUCN, making it one of the most threatened seabirds in the Americas. - It is one of the smallest tern species in the world, often weighing less than a standard lightbulb. - This species was once feared extinct until its rediscovery...

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