The Bonin nankeen night heron (''Nycticorax caledonicus crassirostris'') is an extinct subspecies of the nankeen night heron.

Description

The Bonin nankeen night heron was described by Nicholas Aylward Vigors in 1839 based on reports by

Heinrich von Kittlitz Friedrich Heinrich, Freiherr von Kittlitz (16 February 1799 – 10 April 1874) was a Prussian artist, naval officer, explorer and naturalist. He was a descendant of a family of old Prussian nobility ("Freiherr" meaning "independent lord" - ranking w ...

and by Captain

Frederick William Beechey Frederick William Beechey (17 February 1796 – 29 November 1856) was an English naval officer, artist, explorer, hydrographer and writer. Life and career He was the son of two painters, Sir William Beechey, RA and his second wife, Anne ...

from the British ship HMS ''Blossom'' from 1828. It reached a size of about 61 cm. The crown was black and had two white ornamental plumes which reached to its back. The back was cinnamon-brown. The underparts were white. Feet and legs were orange and the

bill Bill(s) may refer to: Common meanings * Banknote, paper cash (especially in the United States) * Bill (law), a proposed law put before a legislature * Invoice, commercial document issued by a seller to a buyer * Bill, a bird or animal's beak Plac ...

was black. In contrast to the nankeen night heron it had a thicker and straighter bill.

Range and Habitat

It was only found on the

Bonin Islands The Bonin Islands, also known as the , are an archipelago of over 30 subtropical and tropical islands, some directly south of Tokyo, Japan and northwest of Guam. The name "Bonin Islands" comes from the Japanese word ''bunin'' (an archaic read ...

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and Nakōdo-jima. Its

habitat In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical ...

consisted of

beach A beach is a landform alongside a body of water which consists of loose particles. The particles composing a beach are typically made from rock, such as sand, gravel, shingle, pebbles, etc., or biological sources, such as mollusc sh ...

es and

marsh A marsh is a wetland that is dominated by herbaceous rather than woody plant species.Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation (2nd edition). Cambridge University Press, Cambridge, UK. 497 p Marshes can often be found a ...

es where it nested in low trees.

Food

Insect Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body ( head, thorax and abdomen), three ...

fish Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of ...

, and possibly small

turtle Turtles are an order of reptiles known as Testudines, characterized by a special shell developed mainly from their ribs. Modern turtles are divided into two major groups, the Pleurodira (side necked turtles) and Cryptodira (hidden necked t ...

Extinction

The Bonin nankeen night heron became extinct only 50 years after its description. The last specimen was taken in 1889 on Nakōdo-jima. Six museum specimens exist, one each in

London London is the capital and List of urban areas in the United Kingdom, largest city of England and the United Kingdom, with a population of just under 9 million. It stands on the River Thames in south-east England at the head of a estuary dow ...

and Bremen, and four in

St. Petersburg Saint Petersburg ( rus, links=no, Санкт-Петербург, a=Ru-Sankt Peterburg Leningrad Petrograd Piter.ogg, r=Sankt-Peterburg, p=ˈsankt pʲɪtʲɪrˈburk), formerly known as Petrograd (1914–1924) and later Leningrad (1924–1991), i ...

. The most likely reason for its extinction is predation by rats and feral cats. However, collectors fascinated by its plumes may also have been responsible; birds shot for use in

millinery Hat-making or millinery is the design, manufacture and sale of hats and other headwear. A person engaged in this trade is called a milliner or hatter. Historically, milliners, typically women shopkeepers, produced or imported an inventory of g ...

(a burgeoning business in contemporary Japan) would not have ended up in scientific collections.

References

* Greenway, James C. (1967): Extinct and Vanishing Birds of the World * Day, David (1981): The Doomsday Book of Animals Nycticorax Extinct animals of Japan Extinct birds of Oceania Natural history of the Bonin Islands Endemic birds of Japan Bird extinctions since 1500 Birds described in 1839 {{Pelecaniformes-stub