Rock of Gibraltar may have originated from an escape of North African animals transported to Spain; it is also possible that the original Gibraltar macaques are a remnant of populations that are known to have spread throughout Southern Europe during the Pliocene, up to 5.5 million years ago. Some animals of the Rock have been reintroduced by the Alameda Wildlife Conservation Park who have three Barbary macaques. The Rock of Gibraltar, at the head of the Strait, is a prominent headland, which accumulates migrating birds during the passage periods. The vegetation on the Rock, unique in southern Iberia, provides a temporary home for
History of nationality in Gibraltar an inquiry into the civil administration of The Rock. In 1855, the Governor went so far as to issue a press ordinance granting himself the power to control publications in Gibraltar. Gibraltar has been commonly referred to as 'the only remaining colony in Europe' up to the present. However, the British Nationality Act 1981 formally changed Gibraltar's status from a colony to a British overseas territory. Furthermore, in 2006 the term 'colony' was removed from the Gibraltar Constitution. It is of note that in 1767 the census divided the population into three religious categories: British and Protestant; Roman Catholic; and