Pigeon Rehydration Formula: Coolbird uses Hydracom Iso to restore fluid balance in pigeons, especially in cases of dehydration, after intense training, or in hot weather. It can also be used when pigeons are suffering from digestive problems that may cause dehydration. Instructions: Dissolve one heaped tablespoon (30g) per liter of drinking water to obtain an isotonic solution. Administer this solution to pigeons on their return day and after training flights, particularly in warm weather.