The grey-headed swamphen (''Porphyrio poliocephalus'') is a species of
swamphen occurring from the Middle East and the Indian subcontinent to southern China and northern Thailand. It used to be considered a subspecies of the
purple swamphen The purple swamphen has been split into the following species:
* Western swamphen, ''Porphyrio porphyrio'', southwest Europe and northwest Africa
* African swamphen, ''Porphyrio madagascariensis'', sub-Saharan continental Africa and Madagascar
* Gr ...
, but was elevated to full species status in 2015; today the purple swamphen is considered a
superspecies and each of its six subspecies groups are designated full species.
The male has an elaborate courtship display, holding water weeds in his bill and bowing to the female with loud chuckles.
The grey-headed swamphen was introduced to North America in the late 1990s due to
avicultural escapes in the
Pembroke Pines, Florida
Pembroke Pines is a city in southern Broward County, Florida, United States. The city is located 22 miles (35 km) north of Miami. The population of Pembroke Pines is 171,178 as of the 2020 census. It is a suburb of and the fourth-most populous c ...
area. State wildlife biologists attempted to eradicate the birds, but they have multiplied and can now be found in many areas of southern
Florida
Florida is a state located in the Southeastern region of the United States. Florida is bordered to the west by the Gulf of Mexico, to the northwest by Alabama, to the north by Georgia, to the east by the Bahamas and Atlantic Ocean, and to ...
. Ornithological authorities consider it likely that the swamphen will become an established part of Florida's avifauna.
[Pranty, Bill, Kim Schnitzius, Kevin Schnitzius, and Helen W. Lovell. 2000. Discovery, distribution, and origin of the purple swamphen (Porphyrio porphyrio) in Florida.' '' Florida Field Naturalist'' 28: 1–11.] It was added to the
American Birding Association checklist in February 2013.
Taxonomy and systematics
The grey-headed swamphen is one of 15 species in the genus
''Porphyrio''. It was classified as a subspecies of ''P. porphyrio'' until 2015, when the purple swamphen species complex was split into 6 species.
Subspecies
* P. p. poliocephalus-
Latham, 1801: The nominate subspecies. Found from
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 so ...
(including the
Andaman and Nicobar Islands
The Andaman and Nicobar Islands is a union territory of India consisting of 572 islands, of which 37 are inhabited, at the junction of the Bay of Bengal and the Andaman Sea. The territory is about north of Aceh in Indonesia and separated f ...
) 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 ...
to southern
China
China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...
and northern
Thailand
Thailand ( ), historically known as Siam () and officially the Kingdom of Thailand, is a country in Southeast Asia, located at the centre of the Indochinese Peninsula, spanning , with a population of almost 70 million. The country is bo ...
.
* P. p. seistanicus-
Zarudny and Härms, 1911: Found from
Iraq
Iraq,; ku, عێراق, translit=Êraq officially the Republic of Iraq, '; ku, کۆماری عێراق, translit=Komarî Êraq is a country in Western Asia. It is bordered by Turkey to Iraq–Turkey border, the north, Iran to Iran–Iraq ...
and southern
Iran
Iran, officially the Islamic Republic of Iran, and also called Persia, is a country located in Western Asia. It is bordered by Iraq and Turkey to the west, by Azerbaijan and Armenia to the northwest, by the Caspian Sea and Turkmeni ...
to
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 ...
,
Afghanistan
Afghanistan, officially the Islamic Emirate of Afghanistan,; prs, امارت اسلامی افغانستان is a landlocked country located at the crossroads of Central Asia and South Asia. Referred to as the Heart of Asia, it is bordere ...
, and northwestern India. There is also an introduced population in Florida.
* P. p. caspius-
Hartert, 1917 : Found near the
Caspian Sea
The Caspian Sea is the world's largest inland body of water, often described as the world's largest lake or a full-fledged sea. An endorheic basin, it lies between Europe and Asia; east of the Caucasus, west of the broad steppe of Central Asia ...
, northwestern Iran, and
Turkey
Turkey ( tr, Türkiye ), officially the Republic of Türkiye ( tr, Türkiye Cumhuriyeti, links=no ), is a list of transcontinental countries, transcontinental country located mainly on the Anatolia, Anatolian Peninsula in Western Asia, with ...
.
References
External links
{{Taxonbar, from=Q13173082
grey-headed swamphen
The grey-headed swamphen (''Porphyrio poliocephalus'') is a species of swamphen occurring from the Middle East and the Indian subcontinent to southern China and northern Thailand. It used to be considered a subspecies of the purple swamphen, b ...
Birds of Western Asia
Birds of South Asia
grey-headed swamphen
The grey-headed swamphen (''Porphyrio poliocephalus'') is a species of swamphen occurring from the Middle East and the Indian subcontinent to southern China and northern Thailand. It used to be considered a subspecies of the purple swamphen, b ...
grey-headed swamphen
The grey-headed swamphen (''Porphyrio poliocephalus'') is a species of swamphen occurring from the Middle East and the Indian subcontinent to southern China and northern Thailand. It used to be considered a subspecies of the purple swamphen, b ...