In the late twentieth century 300 Mauritanian shepherds travelled to the United Arab Emirates in order to tend the herds of some of this country's most prominent leaders. These low-tech subjects of global migration flows were particularly valued and sought after by their Emirati employers for their expertise in raising camels. I will here present some of the agents involved in this transit, focusing on the reintegration of these shepherds in Mauritanian stratified tribal spheres, following their widespread return to the Sahara. The possibility of a statutory reconversion (after a financially rewarding experience in the Gulf) will be central to the discussions essayed in this article, given the pervasive designation of these shepherds as a 'tributary' (znāga) group, through the application of the tripartite model which, to a large extent, still defines Mauritania's arabophone population.