▁is ▁the ▁result ▁of ▁vol can ic ▁activity ▁around ▁ 3 3 5 ▁million ▁years ▁ago . ▁F id ra ▁consists ▁of ▁three ▁sections ; ▁a ▁hill ▁at ▁one ▁end ▁with ▁the ▁l ighth ouse ▁on ▁it ; ▁a ▁low - lying ▁section ▁in ▁the ▁middle , ▁effectively ▁an ▁is th mus ; ▁and ▁a ▁rock y ▁stack ▁at ▁the ▁other ▁end . ▁ ▁History ▁ ▁The ▁island ' s ▁name ▁is ▁believed ▁to ▁be ▁Old ▁Nor se ▁in ▁origin , ▁referring ▁to ▁the ▁large ▁number ▁of ▁bird ▁fe athers ▁found ▁there . ▁Like ▁the ▁nearby ▁Bass ▁Rock , ▁it ▁has ▁a ▁substantial ▁se ab ird ▁population , ▁and ▁is ▁now ▁an ▁R SP B ▁reserve . ▁The ▁village ▁of ▁G ull ane ▁lies ▁to ▁the ▁south - west , ▁and ▁the ▁nature ▁reserve ▁of ▁Y ellow cra ig ▁and ▁village ▁of ▁Dir leton , ▁to ▁which ▁parish ▁F id ra ▁belongs , ▁are ▁to ▁the ▁south . ▁Rem ot ely ▁operated ▁cam eras ▁on ▁the ▁island ▁send ▁live ▁pictures ▁to ▁the ▁watching ▁visitors ▁at ▁the ▁Scottish ▁Se ab ird ▁Centre ▁in ▁North ▁Ber wick . ▁ ▁Upon ▁the ▁island ▁are ▁ru ins ▁of ▁an ▁old ▁chap el , ▁or ▁la z aret to ▁for ▁the ▁sick , ▁which ▁was ▁dedicated ▁in ▁ 1 1 6 5 ▁to ▁St ▁Nicholas . ▁In ▁the ▁ 1 2 th - century , ▁the ▁island ▁formed ▁part ▁of ▁the ▁bar ony ▁of ▁Dir leton , ▁which ▁was ▁granted ▁to ▁the ▁Ang lo - N orm an