Thousands of seagulls yellowed legs, set up their nests on the hills and rocky places in the island, representing the biggest breeding colony of this species.

The micro climate dry and sunny of the island diferenci difference bettwen the reptiles of the islands and the reptiles of the same kind in the peninsula, such as it is verified by the bigger size of the island’s wall lizard, or the appearance of a new subspecies: the lizard of sálvora, in the island of cortegada the biggest laurisilva forest in europe.