'Black' Squirrel - our garden

Despite a lot of bird song on walks with the dogs, I'm not seeing much I can photograph effectively.  Have heard a Chiffchaff though, so will look out for an obliging one to photograph.

For several years we've had Black Squirrels in the garden.   One came to feed this morning (on the bird proof squirrel feeder) - taken through glass.   Their bellies are rust coloured with the backs a lovely mix of black and brown hair.   The tail is less dense than that of the Grey Squirrel.