A booby is a seabird in the genus Sula, part of the family Sulidae. Boobies are closely related to the gannets (Morus), which were formerly included in Sula.
The English name "booby" was possibly based on the Spanish slang term bobo, meaning "stupid", as these tame birds had a habit of landing on board sailing ships, where they were easily captured and eaten.

1/ Brown booby (Chim điên bụng trắng, Sula leucogaster)
2/ Red-footed booby (Chim điên chân đỏ, Sula sula)
3/ Masked booby (Chim điên mặt xanh, Sula dactylatra), also called the masked gannet or the blue-faced booby