Editing Pink-headed duck (section)

{{short description|Species of bird}}
{{speciesbox
| name = Pink-headed duck 
| status = CR
| status_system = IUCN3.1
| status_ref = <ref name="iucn status 13 November 2021">{{cite iucn |author=BirdLife International |date=2018 |title=''Rhodonessa caryophyllacea'' |volume=2018 |page=e.T22680344A125558688 |doi=10.2305/IUCN.UK.2016-3.RLTS.T22680344A125558688.en |access-date=13 November 2021}}</ref>
| status2 = CITES_A1 
 | status2_system = CITES 
 | status2_ref = <ref>{{Cite web|title=Appendices {{!}} CITES|url=https://cites.org/eng/app/appendices.php|access-date=2022-01-14|website=cites.org}}</ref>
| image= Taxidermied Rhodonessa caryophyllacea.JPG
| image_caption = Mounted specimen at [[National Museum of Scotland]]
| genus = Rhodonessa
| parent_authority = [[Ludwig Reichenbach|Reichenbach]], 1853
| species = caryophyllacea
| authority = ([[John Latham (ornithologist)|Latham]], 1790)<ref>{{cite book|last=Latham|first=John|year=1790|title=Index ornithologicus, sive Systema Ornithologiae; complectens avium divisionem in classes, ordines, genera, species, ipsarumque varietates: adjectis synonymis, locis, descriptionibus, &c.|url=https://archive.org/details/bub_gb_UPZAAAAAcAAJ|location=London|publisher= Leigh & Sotheby}}</ref>
| synonyms =
''Anas caryophyllacea''<br/>
''Fuligula caryophyllacea''<br/>
''Netta caryophyllacea''<br />
''Callichen caryophyllaceum''
| range_map = RhodonessaCaryophyllaceaMap.png
| range_map_caption = Distribution of records of this species
}}

The '''pink-headed duck''' ('''''Rhodonessa caryophyllacea''''') is a large [[diving duck]] that was once found in parts of the [[Indo-Gangetic Plain|Gangetic plains]] of India, [[Nepal]], parts of Maharashtra, Bangladesh and in the riverine swamps of Myanmar but has been feared [[extinct]] since the 1950s. Numerous searches have failed to provide any proof of continued existence. It has been suggested that it may exist in the inaccessible swamp regions of northern Myanmar and some sight reports from that region have led to its status being declared as "Critically Endangered" rather than extinct.<ref name="iucn status 13 November 2021" /><ref>{{cite journal| title= Extant Unless Proven Extinct: The International Legal Precedent|last=King|first=F. Wayne|journal=Conservation Biology| volume=2| issue=4 | year=1988| pages=395–397| doi= 10.1111/j.1523-1739.1988.tb00205.x|bibcode=1988ConBi...2..395K }}</ref> The genus placement has been disputed and while some have suggested that it is close to the [[red-crested pochard]] (''[[Netta rufina]]''), others have placed it in a separate genus of its own. It is unique in the pink colouration of the head combined with a dark body. A prominent wing patch and the long slender neck are features shared with the common [[Indian spot-billed duck]]. The eggs have also been held as particularly peculiar in being nearly spherical.