In Argentina, the scientists released a total of 4 Andean condors into the wilderness as part of a "help save the world's largest bird of prey" program.

These Andean condors have wingspans of more than 3 meters and was once common when looking into the skies of South America. But now, only a few thousands were left because of the destruction of their homes.

4 chicks condors were born during captivity and were looked after before their releases. For the first year, the experts will keep watchful eyes upon them by using the radio transmitter and to feed them until they are OK to set off on their own.

Luis Jacome, a scientist, had been working on the protection of condors for 20 years and he had been breeding the chicks at a zoo called Buenos Aires. There, a total of 29 birds had been introduced to their real homes.