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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) 

Frigatebirds are a family of seabirds called Fregatidae which are found across all tropical and subtropical oceans. The five extant species are classified in a single genus, Fregata.