About mid-day I was walking past the dyke where the Tristis Chiff has been present,when I heard a bird singing in a nearby Hawthorn,it was in fact the Tristis Chiff.The song was much quieter,higher pitched and more condensed than the song of a Collybita Chiff.

On closer inspection a faint wing-bar can also be seen on the median coverts,as well as on the greater.