DC has thousands of black squirrels that escaped from the zoo decades ago.
Also saw a white squirrel in the same area of DC on several occasions - so I looked it up. Sure enough it’s documented.
http://www.dclikealocal.com/dclikealocal/2009/11/23/wildlife-of-dc-the-white-squirrel.html
Oh my goodness. It’s adorable! I hope the big kitty doesn’t nom on him.