Fregata is the single genus of the family of seabirds called Fregatidae, in the order of Suliformes.

1/ Lesser frigatebird (Cốc biển bé, Fregata ariel)
2/ Christmas frigatebird (Cốc biển bụng trắng, Fregata andrewsi), or Christmas Island frigatebird
3/ Great frigatebird (Cốc biển đen, Fregata minor)