a tail of a diving blue whale, surrounded by seagulls

whalewatching blue whale sea ocean fin tail seagulls wing balaenoptera musculus fly surrounded flock waterscape flight seabird gull bird wave diving aquatic mammal dive underwater horizon marine wildlife animal atlantic water azores portugal whaletail oceanography oceanology baleen research nature tourism travel watching wild species fish big body large swim cetacea balaenopteramusculus close