Are we on the verge of denying the existence of white swans?

FORBES: Christmas, Kurtosis, Fat Tails, Black Swans And Risk Management, Pt. 2

White Swans are protected by a royal charter, but if the Swans go down it may just signal their extinction.

BBC: Swans colourful history

He calls them Black Swans, after the philosopher Karl Popper's observation that only a single black swan is required to falsify the theory that "all swans are white" even when there are thousands of white swans in evidence.

WSJ: Shattering the Bell Curve

Before the discovery of Australia, Europeans thought that all swans were white, and it would have been considered completely unreasonable to imagine swans of any other color.

FORBES