A booby is a

seabird Seabirds (also known as marine birds) are birds that are adapted to life within the marine environment. While seabirds vary greatly in lifestyle, behaviour and physiology, they often exhibit striking convergent evolution, as the same envir ...

in the

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ...

''Sula'', part of the

family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...

Sulidae. Boobies are closely related to the

gannet Gannets are seabirds comprising the genus ''Morus'' in the family Sulidae, closely related to boobies. Gannets are large white birds with yellowish heads; black-tipped wings; and long bills. Northern gannets are the largest seabirds in the ...

s (''Morus''), which were formerly included in ''Sula''.

Systematics and evolution

The genus ''Sula'' was introduced by the French zoologist

Mathurin Jacques Brisson Mathurin Jacques Brisson (; 30 April 1723 – 23 June 1806) was a French zoologist and natural philosopher. Brisson was born at Fontenay-le-Comte. The earlier part of his life was spent in the pursuit of natural history; his published wo ...

in 1760. The

type species In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specim ...

is the

brown booby The brown booby (''Sula leucogaster'') is a large seabird of the booby family Sulidae, of which it is perhaps the most common and widespread species. It has a pantropical range, which overlaps with that of other booby species. The gregarious bro ...

. The name is derived from ''súla'', the

Old Norse Old Norse, Old Nordic, or Old Scandinavian, is a stage of development of North Germanic dialects before their final divergence into separate Nordic languages. Old Norse was spoken by inhabitants of Scandinavia and their overseas settlement ...

and Icelandic word for the other member of the family Sulidae, the

. The English name "booby" was possibly based on the Spanish

slang Slang is vocabulary (words, phrases, and linguistic usages) of an informal register, common in spoken conversation but avoided in formal writing. It also sometimes refers to the language generally exclusive to the members of particular in-gr ...

term ''bobo'', meaning "stupid", as these tame birds had a habit of landing on board sailing ships, where they were easily captured and eaten. Owing to this, boobies are often mentioned as having been caught and eaten by shipwrecked sailors, notably

William Bligh Vice-Admiral William Bligh (9 September 1754 – 7 December 1817) was an officer of the Royal Navy and a colonial administrator. The mutiny on the HMS ''Bounty'' occurred in 1789 when the ship was under his command; after being set adrift i ...

of the ''Bounty'' and his adherents during their famous voyage after being set adrift by

Fletcher Christian Fletcher Christian (25 September 1764 – 20 September 1793) was master's mate on board HMS ''Bounty'' during Lieutenant William Bligh's voyage to Tahiti during 1787–1789 for breadfruit plants. In the mutiny on the ''Bounty'', Christian se ...

and his followers. Six of the ten extant Sulidae species called ''boobies'' are in the genus ''Sula'', while the three gannet species are usually placed in the genus ''

Morus Morus may refer to: People * Alexander Morus (1616–1670), Franco-Scottish Protestant preacher * Henryk Moruś (1943–2013), Polish serial killer * Huw Morus (1622–1709), Welsh poet * Thomas More or Morus (1478–1535), English philosopher * M ...

''. Abbott's booby was formerly included in ''Sula'' but is now placed in a

monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispe ...

genus ''Papasula'', which represents an ancient lineage perhaps closer to ''Morus''. Some authorities consider that all ten species should be considered

congeneric Congener may refer to: * A thing or person of the same kind as another, or of the same group. * Congener (biology), organisms within the same genus. * Congener (chemistry), related chemicals, e.g., elements in the same group of the periodic table. ...

in ''Sula''. However, they are readily distinguished by means of

osteology Osteology () is the scientific study of bones, practised by osteologists. A subdiscipline of anatomy, anthropology, and paleontology, osteology is the detailed study of the structure of bones, skeletal elements, teeth, microbone morphology, func ...

. The distinct lineages of gannets and boobies are known to have existed in such form, since at least the Middle

Miocene The Miocene ( ) is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recen ...

, ''c.''15 mya. The fossil record of boobies is not as well documented as that of gannets, either because booby speciation was lower from the late

to the

Pliocene The Pliocene ( ; also Pleiocene) is the epoch in the geologic time scale that extends from 5.333 million to 2.58North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and th ...

Europe Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia ...

despite boobies' more tropical distribution.

Behaviour

Boobies hunt fish by diving from a height into the sea and pursuing their prey underwater. Facial air sacs under their skin cushion the impact with the water. Boobies are colonial breeders on islands and coasts. They normally lay one or more chalky-blue eggs on the ground or sometimes in a tree nest. Selective pressures, likely through competition for resource, have shaped the ecomorphology and foraging behaviours of the six species of boobies in the Pacific.

List of species

References

External links

Videos of several Booby species on ''The Internet Bird Collection''Archived
from the original on 2016-04-12) {{Authority control * Taxa named by Mathurin Jacques Brisson