A half-black form, which you find on black-stemmed narrow-leaved sallows (I've seen it in Fermyn Woods).
A strange olive-green colour form, which I'd not seen before (out of >200 in the wild).
And a dull brown-grey form.
Most are in or by forks, or on old twigs scars. Buds aren't popular this year (I've no idea why).
Here's the Doings -
That's the good news. The bad news is that predation by tits during this absurdly mild 'winter' is ominously high, and February is the worst month for it.
