PIEBALD SQUIRRELS

There suddenly seems to be an outburst of brown and white squirrels in the northern USA and Canada.  An early report came in from west of  Denver in 202  A report has even come from Alabama, which is somewhat far from the center of the reported sightings.  Jonathan Downes suggests the American red squirrel may be evolving a white winter coat.  Would such a thing be an advantage with global warming increasing so hideously?  Wild white red squirrels are occasionally reported in the UK.  A white (not albino) was photographed in Scotland in 2020.  I have just located a photograph of a white squirrel in San Diego in 2014.  If  white squirrels occasionally have always occurred, there is no reason why a piebald variety should not develop.