|First Appearance||Pokémon Metal & Wood|
|Ability||Migration, Own Tempo|
Boriole is a medium sized yellow bird-like Pokémon with black markings, an orange beak, red eyes, and blue-grey legs. The black marks can be found on its head, wings, tail, and back. It has a long wingspan that allows it to fly for long periods of time.
Boriole is capable of flying for long periods of time without stopping to rest. It has been known to fly for eight months while only to stop to eat and rest for a few minutes. While not extremely fast, it can use its energy to propel itself fast into the air for dive bombing attacks.
Boriole will often mate for life and will find his or her mate at the breeding grounds. Boriole tends to travel long distances depending on the seasons. It will travel to a warmer climate when its breeding grounds is during winter. It always breeds in the same place.
Boriole feeds on various grains, seeds, and fruits as well as small insects.
It can be found in forested areas as well as meadows and fields.
|Metal||Boriole will travel far distances just to find its mate to breed. It can fly for months at a time without stopping to rest and eat.|
|Wood||It has very strong wings that allows it to fly without rest. While not extremely fast, it can use stored energy to propel itself fast in the air for dive bomb attacks.|
|Metal||Route 5, Route 5, Route 7|
|Wood||Route 5, Route 5, Route 7|
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Boriole is based on a black-hooded oriole.
Boriole is based off from boreal or arboreal and oriole.
Wataguisu is based off from 渡る wataru (transit) and ウグイス uguisu(Japanese bush warbler).Uguisu is the word to describe orioles in Japanese as they have beautiful voices just like a bush warbler. 渡り鳥 wataridori is the Japanese word for migratory bird which is where the name also comes from.