The Pic de Morgon is used by the vultures coming from the right bank of the Durance, sometimes in large numbers, to get up to altitude after having crossed over Serre-Ponçon Lake. Scavengers exclusively , these gravediggers who have frightened and disgusted mankind for a long time hold a fundamental place in the food cycle by rapidly eliminating cadavers and in this way limiting the dispersal of microbes and illness.