Editing Carolina parakeet (section)

===Reasons for extinction===
[[File:Naturalis Biodiversity Center - RMNH.AVES.110115 - Conuropsis carolinensis subspecies - Carolina Parakeet - specimen - video.webm|upright|thumbtime=0:12|thumb|Turnaround video of a mounted skeleton, Naturalis]]
The evidence is indicative that humans had at least a contributory role in the extinction of the Carolina parakeet, through a variety of means.<ref name="The last Carolina Parakeet">{{Cite web |url=http://johnjames.audubon.org/last-carolina-parakeet |title=The last Carolina Parakeet|date=22 December 2015}}</ref> Chief was [[deforestation]] in the 18th and 19th centuries. Hunting played a significant role, both for decorative use of their colorful feathers, for example, adornment of women's hats, and for reduction of crop predation.<ref name=IUCN/> This was partially offset by the recognition of their value in controlling invasive cockleburs. Minor roles were played by capture for the pet trade and, as noted in ''[[Pacific Standard]]'', by the introduction for crop pollination of [[European honeybee]]s that competed for nest sites.<ref>{{Cite web|url=https://psmag.com/environment/remembering-the-carolina-parakeet|title=Happy Global Last Resort Day|last=Cokinos|first=Christopher|date=February 21, 2018|website=[[Pacific Standard]]|access-date=January 18, 2019}}</ref>

A factor that exacerbated their decline to extinction was the flocking behavior that led them to return to the vicinity of dead and dying birds (such as birds downed by hunting), enabling wholesale slaughter.<ref name="The last Carolina Parakeet"/>

The final extinction of the species in the early years of the 20th century is somewhat of a mystery, as it happened so rapidly. Vigorous flocks with many juveniles and reproducing pairs were noted as late as 1896, and the birds were long-lived in captivity, but they had virtually disappeared by 1904. Sufficient nest sites remained intact, so deforestation was not the final cause. American ornithologist Noel F. Snyder<ref name=Snyder/> speculates that the most likely cause seems to be that the birds succumbed to poultry disease, although no recent or historical records exist of New World parrot populations being afflicted by domestic poultry diseases. The modern poultry scourge [[Newcastle disease]] was not detected until 1926 in Indonesia, and only a subacute form of it was reported in the United States in 1938. Genetic research on samples did not show any significant presence of bird viruses (though this does not solely rule out disease).<ref name=":0" />