Fauna

Birds

Dozens of bird species fly the skies of the Sierra, including some of the most emblematic species of the national park.

Mammals

Dozens of mammal species inhabit the Sierra de Guadarrama.

Amphibians

The Sierra de Guadarrama has a high richness of amphibian species.

Reptiles

Information on the reptiles of the Sierra de Guadarrama, some of them very little known.

Fishes

The species that inhabit the mountain rivers, some of them unfortunately introduced.

Invertebrates

The little-known fauna of the Sierra de Guadarrama.