when the Blustery winds howl the Eurasian Rens sing louder the Eurasian Ren or Northern Ren is a very small insectivorous bird and the only member of the ren family trog found in Eurasia and Africa in anglophone Europe it is commonly known simply as the ren it has a very short tail which is often held erect a short neck and a relatively long thin bill it is russet Brown above paler buff Brown below and has a cream buff supercilium the Sexes are alike the scientific name is taken from the Greek word