Aero has been created by pigeon-fanciers. It is a communication network between abandoned water towers of 9 French cities. Homing pigeons can carry messages in different size packages, from one water tower to another. Confidentiality is insured by a seal. Faster than the mail man, surer than an email, more on time than the postal service. What's more, It's poetic, original, ecological, it's aero flight !