Birds of Paradise Video

ONLY NEW GUINEA HAS THESE BIRDS LIVING IN THE DEEP RAIN FORESTS.
IT HAS TAKEN YEARS TO TRACK THESE BIRDS AND STUDY THEIR EXISTENCE. 
WHY DO THEY ONLY EXIST IN NEW GUINEA AND NO WHERE ELSE?
View full screen. The lens he's using probably costs more than a car.  

https://www.youtube.com/embed/REP4S0uqEOc  

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