(2) _Reestablishing new location._ If the tactical situation requires the message center to be moved forward, a new loft with birds that have been trained in mobility will be placed in the new location. The old loft may continue to operate until the new loft has established reliable communication. This method of operation insures continuous message service. As soon as the new loft has established reliable message service, the old loft will be removed, and if the birds are still suitable for combat loft flying the loft will be remobiled. If the birds are no longer suitable for combat flying because of numerous resettling at different locations, or from being settled in one location too long, they may be returned to the base camp and put in one of the breeding sections. The combat loft will then be restocked with new youngsters from the breeding lofts and training in mobility will begin. _e._ TRAINING PRECAUTIONS. (1) _Overtraining._ Care should be taken during flight training not to overtrain the birds. Such training does more harm than good, particularly if long distances are involved. Overtraining can be detected by the slightly dizzy, sleepy, and unbalanced appearance of the birds while resting. When this condition occurs, allow the pigeon to rest for a few days with open loft but no forced exercise. (2) _Feed mixtures while training._ The birds should have access to fresh water and grit at all times. Make sure that the feed is clean and in the best possible condition. Never change the mixture during training or while the pigeons are being used for messenger service because the change will throw the birds out of condition. (3) _Training losses._ Forcing the birds to undertake distant flying before they become properly settled to a location causes frequent losses during the training stage. Care should be taken to limit the first few training flights to distances of approximately 1 mile or less. (4) _Catching pigeons._ The pigeoneer should avoid quick or sudden movements in the loft and should never chase the birds in order to catch them. When it is necessary to catch pigeons during daylight hours, close the blackout windows or insert the shutters to darken the loft. The pigeons may then be picked up easily with the aid of a flashlight. The pigeoneer should avoid catching the pigeons in the loft immediately after their return from a training flight. 36. Delivering Pigeons by Parachute _a._ EQUIPMENT. Parachute equipment PG-100/CB consists of a collapsible, cylinder-type, 4-bird container and a 6-foot hemispherical baseball-type parachute with a quick release clip. Parachute equipment PG-101/CB is of similar design except that the container has an 8-bird capacity and is attached to a 9-foot parachute. This equipment is specifically designed to supply initially or to resupply pigeons to infantry parachute troops, infantry glider troops, or any isolated forces requiring delivery of pigeons by air.