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The black bittern (''Ixobrychus flavicollis'') is a
It is a fairly large species at in length, being by some margin the largest bittern in the genus ''Ixobrychus''. Compared to related species, it has a longish neck and long yellow bill. The adult is uniformly black above, with yellow neck sides. It is whitish below, heavily streaked with brown. The juvenile is like the adult, but dark brown rather than black. They can be difficult to see, given their skulking lifestyle and reed bed habitat, but tend to fly fairly frequently when the all black upperparts makes them unmistakable.
Department of Sustainability and Environment, Victoria
* On the 2007 advisory list of threatened vertebrate fauna in Victoria, the black bittern is listed as
File:Black Bittern (Dupetor flavicollis) in Kinnarsani WS, AP W IMG 6108.jpg, In Kinnerasani Wildlife Sanctuary, Telangana, India
File:Black Bittern (Dupetor flavicollis) in Kinnarsani WS, AP W2 IMG 6115.jpg, In Kinnerasani Wildlife Sanctuary, Telangana, India
File:Black Bittern I IMG 5080.jpg, In
bittern
Bitterns are birds belonging to the subfamily Botaurinae of the heron family Ardeidae. Bitterns tend to be shorter-necked and more secretive than other members of the family. They were called ''hæferblæte'' in Old English; the word "bittern ...
of Old World origin, breeding in tropical Asia
Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own right or a subcontinent of Eurasia, which shares the continental landmass of Afro-Eurasia with Africa. Asia covers an ...
from Pakistan
Pakistan ( ur, ), officially the Islamic Republic of Pakistan ( ur, , label=none), is a country in South Asia. It is the world's List of countries and dependencies by population, fifth-most populous country, with a population of almost 24 ...
, India
India, officially the Republic of India ( Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the ...
, Bangladesh
Bangladesh (}, ), officially the People's Republic of Bangladesh, is a country in South Asia. It is the List of countries and dependencies by population, eighth-most populous country in the world, with a population exceeding 165 million pe ...
and Sri Lanka
Sri Lanka (, ; si, ශ්රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()), formerly known as Ceylon and officially the Democratic Socialist Republic of Sri Lanka, is an ...
east to China, Indonesia
Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Guine ...
, and Australia. It is mainly resident, but some northern birds migrate
Migration, migratory, or migrate may refer to: Human migration
* Human migration, physical movement by humans from one region to another
** International migration, when peoples cross state boundaries and stay in the host state for some minimum le ...
short distances.
Description
It is a fairly large species at in length, being by some margin the largest bittern in the genus ''Ixobrychus''. Compared to related species, it has a longish neck and long yellow bill. The adult is uniformly black above, with yellow neck sides. It is whitish below, heavily streaked with brown. The juvenile is like the adult, but dark brown rather than black. They can be difficult to see, given their skulking lifestyle and reed bed habitat, but tend to fly fairly frequently when the all black upperparts makes them unmistakable.Breeding
Their breeding habitat isreed bed
A reedbed or reed bed is a natural habitat found in floodplains, waterlogged depressions and
estuaries. Reedbeds are part of a succession from young reeds colonising open water or wet ground through a gradation of increasingly dry ground. As ...
s. They nest on platforms of reeds in shrubs, or sometimes in trees. Three to five eggs are laid. Diet
Black bitterns feed oninsect
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 pairs ...
s, 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% ...
, and amphibians.
Conservation status
Australia
Black bitterns are not listed as threatened on the AustralianEnvironment Protection and Biodiversity Conservation Act 1999
The ''Environment Protection and Biodiversity Conservation Act 1999'' (Cth) is an Act of the Parliament of Australia that provides a framework for protection of the Australian environment, including its biodiversity and its natural and cult ...
.
State of Victoria, Australia
* The black bittern is listed as threatened on the VictorianFlora and Fauna Guarantee Act (1988)
The ''Flora and Fauna Guarantee Act 1988'', also known as the ''FFG Act'', is an act of the Victorian Government designed to protect species, genetic material and habitats, to prevent extinction and allow maximum genetic diversity within the Au ...
. Under this act, an ''Action Statement'' for the recovery and future management of this species has not yet been prepared.* On the 2007 advisory list of threatened vertebrate fauna in Victoria, the black bittern is listed as
vulnerable
Vulnerable may refer to:
General
* Vulnerability
* Vulnerability (computing)
* Vulnerable adult
* Vulnerable species
Music
Albums
* ''Vulnerable'' (Marvin Gaye album), 1997
* ''Vulnerable'' (Tricky album), 2003
* ''Vulnerable'' (The Used album) ...
.
Gallery
Kolkata
Kolkata (, or , ; also known as Calcutta , List of renamed places in India#West Bengal, the official name until 2001) is the Capital city, capital of the Indian States and union territories of India, state of West Bengal, on the eastern ba ...
, West Bengal
West Bengal (, Bengali: ''Poshchim Bongo'', , abbr. WB) is a state in the eastern portion of India. It is situated along the Bay of Bengal, along with a population of over 91 million inhabitants within an area of . West Bengal is the four ...
, India
File:Black Bittern.jpg, In Kolkata, West Bengal, India
File:BlackBittern.jpg, Black bittern with frog catch at Chilika, Odisha
File:Black bittern in its habitat.jpg, In its natural habitat from wetlands of Ernakuam, Kerala, India
References
* ''Birds of India'' by Grimmett, Inskipp and Inskipp, {{Taxonbar, from=Q888559 black bittern black bittern Birds of South Asia Birds of Southeast Asia Birds of Oceania black bittern Birds of Nepal