Some authorities, notably the African Bird Club treat Annobón Paradise Flycatcher as a subspecies of Red-bellied Paradise Flycatcher T.
Most Beti-Pahuin peoples also speak their countries’ official languages: Spanish in Equatorial Guinea (Annobonese in Annobón); French in Cameroon, Equatorial Guinea, and Gabon; Portuguese, Angolar, Principense, and Forro in São Tomé and Príncipe, English in Cameroon.
The American author William Styron wrote a short vignette entitled Elobey, Annobón, and Corisco, about his time as a young Marine officer during World War II.
The islands of Pagalu and Bioko (Annobon and Fernando Poo) are of relatively recent volcanic origin, forming a part of the Cameroon Volcanic Line.
The islands are mountainous, with the highest peaks reaching to 2,024 meters on São Tomé (Pico de São Tomé), 948 meters on Príncipe (Pico do Príncipe), and 598 meters on Annobón (Pico Quioveo).