The common wall lizard

In Les Écrins, this little grey or brown southern lizard can be confused with the viviparous lizard. It can be distinguished from it by a black spot at the leg joint. It is found at altitudes of up to 2,500 metres, in various natural environments that are well exposed to the sun, but also in man-made areas. The common wall lizard currently appears to be expanding northward. The railway lines have supported further colonisation thanks to development works which constitute favourable habitats!