Huns are birds that live in the African regions of Senegal and Mauritania. They breed in their millions and destroy everything they pass by like giant locusts. In flight, they resemble thunderclouds. To defend themselves from this veritable scourge, humans must resort to extreme measures: flamethrowers are used on the trees where the Huns nest, and dynamite is used at the roots of the trees where they spend the night, clinging to branches that almost bend under their weight.