Argas persicus, fowl tick or poultry tick is a small soft-bodied tick that is found primarily on chickens and other domestic fowl. It was first recorded by Lorenz Oken in 1818 in Meyaneh, Persia, and named Rhynochoprion persicum.A. persicus has a worldwide distribution in warm climates and is a carrier of avian spirochetosis in chickens.In addition to chickens and other domestic fowl, A. persicus also feeds on humans, although an immunity has been acquired by some individuals.