15 Birds With Unbelievable Beaks

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of 15
Great Hornbill
great hornbil in flight
kajornyot wildlife photography / Shutterstock

The great hornbill is another bird with a particularly impressive bill. This is one of the larger species, along with the rhinoceros hornbill. It sports a bright yellow and black casque on top of its already enormous bill. Though it seems to serve no purpose, the hollow casque may be used for mating selection. And interestingly, the males of the species have been seen head-butting each other with their casques while in flight.
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