JHDraytonbassettpits
Well-known member
Ringing studies have shown are wintering blackcaps come from the continent so not British breeders at all. And in the Nuneaton/Tame Valley area all the wintering Chiffchaffs are from Siberia.
collybita (Vieillot, 1817) - breeds British Is E to S Sweden, and from France and E Spain to W Germany, S Poland, Balkans and NW Turkey; non-breeding around Mediterranean (sporadically to S Ireland, C England and Netherlands) and from NW Africa (including Canary Is) to Middle East.