They are called Julie, Guillaume and Fred. They are urban shepherds. They raise their sheep in the Paris suburbs, at La Courneuve. Their challenge is to nourish their flock on the grass that grows at the foot of tower blocks. They organise their transhumance in the suburbs, or in Paris itself. The apparition of a flock of sheep in an urban setting leaves everyone taken aback, contributes in creating social links and produces a sort of electroshock in the perception of the daily public space.