Question: The Fernando Po speirops is endemic to a country with what official language?

Context paragraphs:
Pichinglis: Pichinglis, commonly referred to by its speakers as Pichi and formally known as Fernando Po Creole English ("Fernandino"), is an Atlantic English-lexicon Creole language spoken on the island of Bioko, Equatorial Guinea.  It is an offshoot of the Krio language of Sierra Leone, and was brought to Bioko by Krios who immigrated to the island during the colonial era in the 19th century.

Official language: An official language is a language that is given a special legal status in a particular country, state, or other jurisdiction.  Typically a country's official language refers to the language used within government (e.g., courts, parliament, administration).  Since "the means of expression of a people cannot be changed by any law", the term "official language" does not typically refer to the language used by a people or country, but by its government.

English language in Puerto Rico: English, along with Spanish, is an official language of the Government of Puerto Rico.  Spanish has been an official language in Puerto Rico since it was colonized in the 15th century.  English, on the other hand, was first introduced as an official language when the United States occupied the island during the Spanish–American War.  Since then, the Puerto Rican government has declared English an official language on several occasions while removing it from that status on as many occasions.

Equatorial Guinea: Equatorial Guinea (Spanish: "Guinea Ecuatorial" , French: "Guinée équatoriale" , Portuguese: "Guiné Equatorial" ), officially the Republic of Equatorial Guinea (Spanish: "República de Guinea Ecuatorial" , French: "République de Guinée équatoriale" , Portuguese: "República da Guiné Equatorial" ), is a country located in Central Africa, with an area of 28000 km2 .  Formerly the colony of Spanish Guinea, its post-independence name evokes its location near both the Equator and the Gulf of Guinea.  Equatorial Guinea is the only sovereign African state in which Spanish is an official language.  s of 2015 , the country had an estimated population of 1,222,245.

Bihari languages: Bihari is the western group of Eastern Indo-Aryan languages, spoken in Bihar, Uttar Pradesh and neighboring states in India.  Angika, Awadhi, Bajjika, Bhojpuri, Magahi, and Maithili are spoken in Nepal as well.  The Angika, Awadhi, Bajjika, Bhojpuri, Magahi and Maithili speaking population form more than 21% of Nepalese population.  Despite the large number of speakers of these languages, they have not been constitutionally recognised in India, except Maithili, which gained constitutional status via the 92nd amendment to the Constitution of India, of 2003 (gaining assent in 2004).  Even in Bihar, Hindi is the language used for educational and official matters.  These languages were legally absorbed under the overarching label Hindi in the 1961 Census.  Such state and national politics are creating conditions for language endangerments.  After independence Hindi was given the sole official status through the Bihar Official Language Act, 1950.  Hindi was displaced as the sole official language of Bihar in 1981, when Urdu was accorded the status of the second official language.  In this struggle between Hindi and Urdu, the claims of widely-spoken native languages of the region—namely, Angika, Maithili, Bhojpuri, and Magahi—were ignored.

Latvian State Language Center: Latvian State Language Centre (VVC; Latvian: "Valsts valodas centrs" ) is a direct administration institution subordinated to the Minister of Justice of the Republic of Latvia.  The purpose of the State Language Centre is to implement the national policy on the use of the official language.  The Centre supervises and controls the conformity with laws and regulations on the use of official language, provides the State administration institutions and the public with official translations of laws and regulations and other documents issued by the State or international organisations while concurrently ensuring use of consistent terminology.  The State Language Centre protects rights and interests of the official language users, promotes the regularisation of the cultural environment of language and promotes comprehensive functioning of Latvian language.

Languages of Pakistan: Pakistan's national language is Urdu, which, along with English, is also the official language.  In 2015, the government of Pakistan announced plans to make Urdu the sole official language and abolish English as the second official language.  The country is also home to several regional languages, including Punjabi, Saraiki, Pashto, Sindhi, Balochi, Kashmiri, Hindko, Brahui, Shina, Balti, Khowar, Dhatki, Marwari, Wakhi and Burushaski.  From among these, four (Punjabi, Pashto, Sindhi, and Balochi) are provincial languages.

Fernando Po speirops: The Fernando Po speirops ("Zosterops brunneus"), also known as the Bioko speirops, is a species of bird in the family Zosteropidae.  It is endemic to Bioko Island in Equatorial Guinea.

William Barleycorn: William Napoleon Barleycorn (1848–1925), born in Santa Isabel, Fernando Po, Spanish Guinea and a Krio Fernandino of Igbo descent, was a Primitive Methodist missionary who went to Fernando Po (now known as Bioko) in Africa in the early 1880s.  From there, he traveled to Edinburgh University.

Minority languages of Denmark: Danish language is the official language in Denmark.  On the Faroe Islands Faroese language is the official language while both Faroese and Danish must be taught in schools.  Danish should be used in court, but Faroese can be used in all other official places.  Greenlandic language is the official language on Greenland and Greenland's Home Rule Act of 2009 does not require Danish to be taught or the use of Danish for official purposes.  In accordance with Denmark's official monolingualism all official documents and communications are in Danish.

Supporting paragraphs: Fernando Po speirops Equatorial Guinea
Answer: Spanish