What is isleno?

Isleno is a dialect of Spanish spoken in the Canary Islands, specifically on the island of El Hierro. It has been influenced by the surrounding languages of Portuguese, Guanche, and Spanish. The language has been declining in usage, with only a few hundred speakers remaining. It is considered endangered by UNESCO. Isleno differs from standard Spanish in its pronunciation, grammar, and vocabulary. It also has a unique rhythm and melody. Several efforts have been made to preserve and revitalize the language, including the creation of dictionaries and language learning programs.