▁to ▁eat ▁and ▁collect ▁sea - bird s ▁and ▁their ▁eggs . ▁The ▁birds ▁of ▁F at uk aka ▁have ▁never ▁been ▁survey ed ▁although ▁the ▁presence ▁of ▁Fr ig ate bird , ▁Eastern ▁Re ef ▁Eg ret , ▁Pacific ▁Imperial ▁P ige on , ▁and ▁Emer ald ▁D ove ▁have ▁been ▁reported . ▁ ▁Ge ology ▁F at ut aka ▁is ▁one ▁of ▁numerous ▁vol can ic ▁high s , ▁islands ▁and ▁banks , ▁in ▁the ▁north - western ▁North ▁F iji ▁Bas in ▁south ▁of ▁the ▁foss il ▁Vit ia z ▁T rench ▁( 1 0 ° 3 0 ' – 1 9 ° S , ▁ 1 6 9 ° – 1 7 4 ° E ). ▁ ▁These ▁high s ▁are , ▁however , ▁located ▁up ▁to ▁ ▁from ▁the ▁Vit ia z ▁T rench ▁and ▁do ▁not ▁form ▁a ▁continuous ▁chain ▁derived ▁from ▁the ▁tren ch , ▁but ▁are ▁a ▁series ▁of ▁mass ifs ▁aligned ▁on ▁north - s outh ▁tr ending ▁fault s . ▁ ▁An uta ▁and ▁F at ut aka ▁consist ▁of ▁bas alt ic ▁la vas ▁and ▁and es it ic ▁bre c cias . ▁ ▁In ▁the ▁ 1 9 7 0 s ▁the ▁formation ▁of ▁An uta ▁and ▁F at ut aka ▁ 2 . 2   ▁was ▁attributed ▁to ▁vol can ism ▁in ▁the ▁Vit ia z ▁island ▁arc ▁during ▁the ▁initial ▁back - arc ▁opening ▁of ▁the ▁North ▁F iji ▁Bas in . ▁ ▁The ▁Vit ia z ▁Arc ▁vol