Flamingos don't normally migrate unless there are changes in their habitat conditions, for example, those living near high altitude lakes and in northern climates. Other reasons flamingos to migrate would be a rise in the water of their habitat or a drought. Migrating birds will leave when the water begins to freeze or like the flamingos studied in France that begin leaving in September. Flamingos prefer to migrate at night when there are good tailwinds and a clear sky. When they travel in daylight, they fly at high altitudes to avoid predator birds. For more information, see the link below.