Uccelli simili a Willow Warbler

Key differences

The most common confusion species. Key differences: Willow Warbler has pale legs (Chiffchaff usually dark), longer primary projection (more pointed wing), and a more distinct, longer supercilium. The song is the most reliable differentiator: Willow Warbler's descending, fluty song vs. Chiffchaff's repetitive 'chiff-chaff' song. Willow Warbler's call is a soft 'hoo-eet' vs. Chiffchaff's sharper 'hweet'.

Key differences

Larger and brighter yellow on the throat and breast, with a very prominent yellow supercilium. It has a more striking contrast between its bright yellow underparts and white belly. Its song is a distinctive shivering trill followed by a series of accelerating 'pip' notes. It also has a shorter primary projection and a more upright posture.

Key differences

Generally greyer-green upperparts, whiter underparts, and a less distinct supercilium. It has a pale rump, which is a key field mark, and pale legs. Its song is a rapid, dry trill.