unknown Warbler? near St Gervais-sur-Mare

Observation - unknown Warbler? near St Gervais-sur-Mare - Global. Description: Observed in tall grass and willow.
Observed in tall grass and willow.
Observation - unknown Warbler? near St Gervais-sur-Mare - Global. Description: Observed in tall grass and willow.
Observed in tall grass and willow.