This manual provides instructions for proper breeding, care, and training of the homing pigeon, and for the selection and training of enlisted pigeoneers. With certain modifications this information can be used by all pigeon units serving field forces, both in theaters of operations and in the zone of the interior. Instructions in FM 24-5 for units using the homing pigeon in communication have not been repeated. The mission, function, and operation of a signal pigeon company and the tactical employment of pigeons are described in FM 11-80. 2. Methods The methods prescribed in this manual are based upon experience. Accordingly, if any new procedures are found by experience to improve pigeon communication they should be submitted to the Chief Signal Officer for consideration. 3. Origin and History The homing pigeon used by the Army for signal communication (referred to in this manual as “pigeon,” “homing pigeon,” and “bird”) is a distinct variety created through careful cross-breeding to obtain maximum distance and speed in controlled and directed flight. Homing pigeons are grouped in families or strains usually identified by the names of the civilian pigeon fanciers who bred them for many generations to develop certain characteristics of performance and appearance. When the several varieties of pigeons used to breed the modern homing pigeon actually originated is not certain. It is known, however, that the following varieties existed in England and Belgium before the nineteenth century, although the exact percentage and order of their blend have not been determined: Smerle, Horseman, Cumulet, Dragoon, Carrier, and Owl. 4. Nature The principle of using homing pigeons as messengers is based on their instinctive attempt to return to their home lofts whenever they are removed some distance and released. They will do this even with an attached message or other light article. This desire to return is largely based on natural urges of hunger and reproduction. Because the pigeon has only one mate the reproductive urge is often the stronger. These impulses can be stimulated by _controlled_ feeding, mating, and breeding without harming the pigeon’s health. 5. Utility The pigeon’s usefulness to the Army is measured by the reliability and speed with which it returns to its loft. Speed and reliability are largely determined by the pigeon’s strain, physical condition, training, and treatment. Therefore any lowering of standards for these factors will be a serious handicap. Further handicaps are discussed in _e_ below. Section V sets minimum ability standards for properly-trained, well-bred, healthy birds to be used by combat units as message carriers.