This rare bird lives exclusively in Madagascar's wet forests
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The helmet vanga (Euryceros prevostii) is the most unique of birds - its bright blue beak setting it apart from the rest.
Vanga's are only found in the wet, eastern forests of Madagascar. There are around 20 species of the bird on the island, all descended from the same ancestor species.
No one knows exactly why it was blessed with this brilliant appendage, but its beauty hides a lethal weapon. Vanga's are ambush hunters pouncing of millipedes, cicadas and lizards from above.
detail story at
http://www.bbc.com/earth/story/20170628-helmet-vangas-killer-blue-beak