Willow Warbler (Phylloscopus trochilus)

Willow Warbler (Phylloscopus trochilus)

Observation - Willow Warbler (Phylloscopus trochilus). Description: In a willow tree beside a freshwater loch. Difficulty deciding between Willow Warbler (Phylloscopus trochilus) and Chiffchaff (Phylloscopus collybita). Can anyone reassure me?

In a willow tree beside a freshwater loch. Difficulty deciding between Willow Warbler (Phylloscopus trochilus) and Chiffchaff (Phylloscopus collybita). Can anyone reassure me?