((('Macronectes giganteus U48941','Macronectes giganteus AF076060'),('Procellaria cinerea U48940','Procellaria cinerea AP009191')),(((('Phoebastria albatrus','Phoebastria irrorata'),('Phoebastria immutabilis','Phoebastria nigripes')),(((('Diomedea amsterdamensis','Diomedea exulans'),('Diomedea antipodensis','Diomedea gibsoni')),'Diomedea dabbenena'),('Diomedea epomophora','Diomedea sanfordi'))),(('Phoebetria fusca','Phoebetria palpebrata'),((((('Thalassarche eremita','Thalassarche salvini'),('Thalassarche cauta','Thalassarche steadi')),('Thalassarche bulleri bulleri','Thalassarche bulleri platei')),(('Thalassarche impavida','Thalassarche melanophris'),'Thalassarche chrysostoma')),('Thalassarche carteri','Thalassarche chlororhynchos')))));