Tête de Louis XVI via Col de Corbière

Brown in colour with relatively short ears, the common pipistrelle and the kuhl's pipistrelle are rivals for the title of Europe's smallest bat. The common pipistrelle can be found in a wide range of ecological environments, even above an altitude of 2,000 m. In late 19th century France, school books celebrated the virtues of the bat. They are insectivores, eating a quarter or a third of their weight each day in mosquitoes and other insects. They emit ultrasounds that cannot be heard by the human ear. This technique helps them to find their way in the dark and capture their prey. They are often to be seen around lampposts, hunting insects that are attracted to the light.

This campanula is easy to recognise, with its tufts of highly compact yellow flowers. It is one of the few Alpine biannual plants. The seeds scattered in autumn produce large, slender leaves the first year, growing in a rosette shape. The flower only blooms the second year, when it ensures its posterity, then dies. The plant can be found on Alpine grassland (from altitudes of 1,000 to 2,600 m) and on rocky ground and soil that is rich in limestone. Standing on a thick, hollow stalk with a great many leaves, it is 10 to 40 cm tall.

In summer, the griffon vultures leave their nesting areas, attracted by the many sheep grazing in the Alpine pastures. They soar up above the mountain crests. Expert scavengers, they have a fundamental role in the food chain, quickly eliminating corpses and so limiting the risk of disease spreading. This task as nature's undertakers has long made them an object of horror and fear for mankind. They are in decline in the Alps, but once again present in the Massif des Ecrins, following programmes to reintroduce them since 1980 in Les Causses and more recently in the Prealps.