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, 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 ...

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 ...

. 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 List of countries and dependencies by area, seventh-largest country by area, the List of countries and dependencies by population, second-most populous ...

(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 List of countries and dependencies by population, most populous country, with a Population of China, population exceeding 1.4 billion, slig ...

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 b ...

. * 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 ...

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 borde ...

, 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 A ...

, northwestern Iran, and

Turkey Turkey ( tr, Türkiye ), officially the Republic of Türkiye ( tr, Türkiye Cumhuriyeti, links=no ), is a transcontinental country located mainly on the Anatolian Peninsula in Western Asia, with a small portion on the Balkan Peninsula ...

References

External links

{{Taxonbar, from=Q13173082 grey-headed swamphen Birds of Western Asia Birds of South Asia grey-headed swamphen grey-headed swamphen