An accentor is a genus of European birds, Latin name Prunella, which includes the hedge warbler.

It is also a musical term for the person who sings the leading part.

Small passerines - goldcrest, firecrest, wren, robin, blue tit (chickadee in the US), great tit, long-tailed tit, house sparrow, tree sparrow, hedge sparrow (accentor), chaffinch, greenfinch, siskin, redpoll, lesser redpoll, etc etc etc etc - all are no bigger than a house sparrow

robin is the red robin

The american robin is actually a type of thrush, wheras the european robin is a true robin.

"Robin" in Polish is "rudzik."