What is known about the Barr Lake Black Swan?

[Dave Cameron]

With any online discussion of provenance quite  conspicuous by its absence, and the fair assumption that this bird did not fly here from Australia, is anything actually known about where this bird came from...?  

Dave Cameron

Denver 

[Susan Rosine]

I hope people will reply online, for all to see. Sometimes I know emails go back and forth privately.
Susan Rosine
Thornton CO