Shuttle-shaped Dart

Shuttle-shaped Dart

Observation - Shuttle-shaped Dart - UK and Ireland. Description: (ID added after help from others, thanks, guys). This ought to be in my book, but either it isn't or it may just be that the markings aren't clear enough for me to ID it. Any ideas, guys?

(ID added after help from others, thanks, guys). This ought to be in my book, but either it isn't or it may just be that the markings aren't clear enough for me to ID it. Any ideas, guys?