Chiffchaff?

Chiffchaff?

Observation - Chiffchaff?. Description: Not sure if chiffchaff or willow warbler. Shape looked more like chiffchaff but book says legs should be dark and they don't look that dark when I zoom in.

Not sure if chiffchaff or willow warbler. Shape looked more like chiffchaff but book says legs should be dark and they don't look that dark when I zoom in.