dunnock
nounUS, UK /ˈdʌnək/
Etymology From Middle English donek, dunok, from Old English *dunnuc, equivalent to dun (“brownish grey”) + -ock (diminutive suffix). Compare Old High German doniklīn (“hedge-sparrow; dunnock”). Compare ruddock.
1
A small European and Asian passerine bird, Prunella modularis; the hedge sparrow or hedge warbler.