The Algarve is a fascinating region for birdwatching. It comprises a variety of habitats, from coastal wetlands and saltpans to rocky cliffs, oak and pine woodland and deep river valleys. As it lies on a migration route, it can provide great birding throughout the year. In this book, we describe 100 birding hotspots, located throughout the region. The contents have been organised according to the 16 concelhos, so there is a chapter for each concelho. This way, it is ensured that all hotspots that are located in the same area are grouped in the same chapter. Concelhos are presented in alphabetical order. Each chapter begins with a two-page introduction, which highlights some interesting birds that can be seen in the concelho and how the hotspots look like. After that, detailed information is provided for each hotspot: a brief description, a list of the most interesting birds that can be found there, and some suggestions on how it can be explored. All the places described in this book are accessible by car. In many cases, small pedestrian routes are also suggested, which will allow for a better exploration of each of the selected sites.