Willow warbler
Phylloscopus trochilus
Olive brown plumage with a narrow white stripe above the eye.
Habitat: woodland and patches of scrub.
Distribution: throughout the UK in summer.
-
Willow warbler (northeastwildlife.co.uk)
Audio
Willow warbler has a melodious song:
Not to be confused with

Chiffchaff
Willow warbler can be distinguished from chiffchaff by its more melodious song. (Amy Lewis/WTML)