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The Pelecanidae is a family of pelecaniform birds within the Pelecani that contains three genera: 
- the extinct Eopelecanus,
- the Miopelecanus,
- and the extant Pelecanus.

Pelicans (genus Pelecanus) are a genus of large water birds that make up the family Pelecanidae with a long beak and a large throat pouch.
The throat pouch is used for catching prey and draining water from the scooped-up contents before swallowing. 

1/ Great white pelican (Bồ nông trắng lớn, Pelecanus onocrotalus) also known as the eastern white pelican, rosy pelican or simply white pelican
2/ Spot-billed pelican (Bồ nông chân xám, Pelecanus philippensis) or gray pelican