Kilowattrel do not naturally learn the reckless, charging technique which trainers have settled on calling 'Brave Bird' (although they can be taught it easily enough), yet they are still renowned for their courage. These migratory pokemon struggle mightily in water, and mid-ocean sailors have at times rescued them from drowning (either to train or to eat, depending on the crew's own condition,) and yet they still attempt to cross oceans, flying vast distances with no concern for what should happen if they fail to find land.
The term 'kilometer' derives from the distance a Kilowattrel flies in a single minute, and not, as medieval legend holds, from the thousand Wattrel who come together, much like Wishiwashi, to form one. In truth, 'kilo' meaning thousand is a back-formation from this pokemon's call. The legend likely originated from the fact that Wattrel form large flocks which blot out the sky, but Kilowattrel are solitary pokemon; both, however, create fierce thunderstorms beneath wherever they fly.
A popular witticism holds that Kilowattrel are unique among migratory birds, for however far they travel, they always experience the same weather. This is not actually true, for the difference in behavior between warm and cool water during a storm is the very thing that leads these pokemon to migrate. Kilowattrel are not cold tolerant, and struggle mightily in hailstorms and blizzards, but the pokemon washed up by the hurricanes that they always seek to generate make for a tremendous feast.
One may fairly accuse these pokemon of overkill, but Kilowattrel are neither the only species to travel the world in search of strange foods nor the most environmentally damaging. It is for good reason that stylized representations of these pokemon are so often employed as the logos of tourism associations and airlines.