bumbarrel (BUM-baer-l) - n., the long-tailed tit (Aegithalos caudatus sub. rosaceus).
A British name for the British variety of the bird. Other dialect names for it include fuffit, poke-pudding, hedge mumruffin, jack-in-a-bottle, bum-towel, prinpriddle, feather-poke, long-tailed mag, and millithrum (that is, miller’s thumb).

© Tony Davison
John Clare describes them:
A British name for the British variety of the bird. Other dialect names for it include fuffit, poke-pudding, hedge mumruffin, jack-in-a-bottle, bum-towel, prinpriddle, feather-poke, long-tailed mag, and millithrum (that is, miller’s thumb).

© Tony Davison
John Clare describes them:
And coy bumbarrels twenty in a drove---L.
Flit down the hedgerows in the frozen plain
And hang on little twigs and start again