The endangered Sao Tome grosbeak is the world’s largest canary — 50 per cent larger than the runner-up.
The São Tomé grosbeak is one of the rarest birds in the world and can only be found on the island of São Tomé in the West African Gulf of Guinea.
After the bird was discovered in 1888, another 101 years went by before it was spotted again by birdwatchers.
The São Tomé grosbeak is distinguished by its size (20 cm long), flat head and very large beak.
São Tomé and Príncipe have been inhabited for more than 500 years, but have remained fairly intact.