In total, 126 species from the study are still lost.

you might see thefull list of birds here.

That doesnt mean the birds are extinct.

Lost bird species. Clockwise from the upper left: Urich’s tyrannulet, Black-naped pheasant-pigeon, Santa Marta Sabrewing, Black-browed Babbler, and the Dusky Tetraka.

Lost bird species. Clockwise from the upper left: Urich’s tyrannulet, Black-naped pheasant-pigeon, Santa Marta Sabrewing, Black-browed Babbler, and the Dusky Tetraka.© David Ascanio, Doka Nason/American Bird Conservancy, Yurgen Vega/SELVA/ProCAT, Panji Gusti Akbar, John C. Mittermeier

In fact, the researchers said only 62% of the unseen birds are in danger of going extinct.

Instead, the species are classified as lost.

Though often at risk and very rare, lost species have a habit ofpopping back up again.

A fossilized feature in volcanic rock.

Within that one percent, however, there are many highly threatened species that havent been recorded in decades.

Finding these birds is essential to prevent them from slipping into extinction.

The study just reinforces something the ABC has known for a while.

The 30-year-old coot nest.

The phenomenon of lost species is not limited to birds.

Since 2017, Global Wildlife Conservation has maintained alistof 2,200 lost species from around the world.

Since its founding, only 13 of those species have since been found.

A dead duck on a Chicago beach captured by NBC5.

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