Editing Muscovy duck (section)

===Feral birds===
[[File:Anseriformes - Cairina moschata - 4.jpg|thumb|right|A feral Muscovy duck in Ely, England]]
In feral birds with domesticated ancestry, the amount of white on the neck and head is variable, as well as the bill, which can be yellow, pink, black, or any mixture of these colours. It may have white patches or bars on the wings, which become more noticeable during flight. Both sexes have small red [[Wattle (anatomy)|wattle]]s around the bill, those of the male being larger and more brightly colored, and often considerably larger in feral birds.<ref>{{Cite web|title=Muscovy Duck |url=https://ebird.org/species/musduc|access-date=2021-06-17|website=ebird.org|language=en}}</ref><ref>{{Cite web|title=Muscovy Duck |url=https://txtbba.tamu.edu/species-accounts/muscovy-duck/|access-date=2021-06-17|website=txtbba.tamu.edu}}</ref>

[[Feral]] Muscovy ducks can breed near urban and suburban lakes and on farms, nesting in tree cavities or on the ground, under shrubs in yards, on apartment balconies, or under roof overhangs. Some feral populations, such as that in southern [[Florida]], have a reputation of becoming [[Pest (organism)|pest]]s on occasion.{{sfn|Johnson|Hawk|2009}} At night they often sleep at water, if there is a water source available, to flee quickly from predators if awakened. Small populations of Muscovy ducks can also be found in [[Ely, Cambridgeshire]], [[Calstock, Cornwall]], and [[Lincoln, Lincolnshire]], U.K. Muscovy ducks have also been spotted in the [[Walsall Arboretum]]. There has been a small population in the [[Buxton Pavilion Gardens|Pavilion Gardens]] public park in [[Buxton]], Derbyshire, for many years.<ref>{{cite web| url=http://www.ispotnature.org/node/325007 | title=Muscovy duck | website=Ispotnature.org | access-date=29 August 2016}}</ref>

In the United States, Muscovy ducks are considered a non-native species, outside of [[Hidalgo County, Texas|Hidalgo]], [[Starr County, Texas|Starr]] and [[Zapata County, Texas|Zapata]] Counties in southernmost Texas, where they are considered indigenous. An owner may raise them for food production only (not for hunting). Similarly, if the ducks have no owner, [[Title 50 of the Code of Federal Regulations|50CFR]] Part 21 (Migratory Bird Permits) allows the removal or destruction of the ducks, their eggs and their nests anywhere in the United States. The population in southern Florida is considered, with numbers in the several thousands, to be established enough to be considered "countable" for bird watchers.<ref name=countable/>

Legal methods to restrict breeding include not feeding these ducks, deterring them with noise or chasing them away.

Although legislation passed in the United States prohibiting trade of Muscovy ducks, the Fish and Wildlife Services intend to revise the regulations. They are not currently implementing them, though release of Muscovy ducks to the wild outside their natural range is prohibited.<ref>{{Cite web|url=https://www.fws.gov/forms/3-200-9.pdf|title = U.S. Fish & Wildlife Service - Forms|website=Fws.org}}</ref>