Complex sentence: It is endemic to São Tomé, an island off the west coast of Africa in the Gulf of Guinea and was first described by the Italian ornithologist Tommaso Salvadori in 1902 under the binomial name "Corythornis thomensis".
Split into simpler sentences: It is endemic to São Tomé, an island off the west coast of Africa in the Gulf of Guinea. It was first described by the Italian ornithologist Tommaso Salvadori in 1902 under the binomial name "Corythornis thomensis".