Not the house sparrow, the starling, the blue tit or the blackbird, but the wren, Troglodytes troglodytes.
From the independent.co.uk
And God help you if you confuse your gnatcatcher and flycatcher, your pyrrhuloxia and phainopepla, your tit and wren and wrentit.
From the ocregister.com
There are the blues and yellows of the great and blue tits, the buff colours of the coal tit, the pink breast of the male chaffinch, collared doves, dunnocks, blackbirds, and the tiny wren.