The species in question was a Siberian Chiffchaff with not just one but two together at a private site in the village.
A Firecrest also seen at the same site and a Common Chiffchaff.
(Some authorities regard Siberian Chiffchaff as a sub-species of Common Chiffchaff and others a full species in its own right. However that debate is for another time.)
Photos courtesy Roger Wyatt