It seems you’re looking for a guide on . Since "Patos" can refer to several things (a city, an island, or just the Portuguese/Spanish word for "ducks"), here’s a concise guide covering the most likely possibilities. 1. Most Likely: Patos, Brazil (City in Paraíba) Patos is a major city in the semi-arid Sertão region of Paraíba state, known as the "Heart of the Sertão."