Cantou, Mingofla + Twigsect + Rumel

Cantou (Starly+Mawile): Another species that settled in the jungle, Cantou can grab several berries at once with its beak and even crack the toughest nut shells. Its eating habits upset other bird pokemon.
 
Mingofla (Cantou+Pink Berry): Cantou has a strange "allergic" reaction to the pink berry (from the orange islands) that causes it to evolve in order to develop the anti-bacterial component for the fruit. After that it can eat as many as it once. Although it prefers to eat fish, and lots of it. Its diet of sea food enhanced the brain of Mingofla, making it one of the smartest bird Pokemon on Earth.
 
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Twigsect (Sudowoodo+Mothim): They shelter themselves in the forest, mimicking the branches of trees. An entire section of the forest could actually be a colony of Twigsects together. It is the tallest bug Pokemon of all.
 
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*Rumel (Chimchar+Sneasel): Rumel is a fire type, although it does not show the bright colours of a usual fire type. That's because it is nocturnal and tries to remain unseen while it hunts its prey (which really is just insects and Pokemon eggs).