Left Tit alone.

We only ever get 3 varieties, on a regular basis: Blue, Great and Coal. Roughly very 42nd  Blue moon we'll catch a fleeting glimpse of, to render my version, "A long Tailed Twit" on account of the fact that only a twit would pass by and not stay where the food was plentiful.
I spotted 2/3 on the feeder this a.m. - but by the time I went & returned with the weapon the Great had turned into a Sparrow. Or at least been replaced by one.
And YES buggerlugs I can tell them apart even without me Spex on even if the Spill Chucker can't tell Goldfinch from Greenfinch..