
A semi-feral
animal
Animals are multicellular, eukaryotic organisms in the Biology, biological Kingdom (biology), kingdom Animalia (). With few exceptions, animals heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, ...
lives predominantly in a
feral
A feral (; ) animal or plant is one that lives in the wild but is descended from domesticated individuals. As with an introduced species, the introduction of feral animals or plants to non-native regions may disrupt ecosystems and has, in som ...
state but has some contact and experience with humans. This may be because it was born in a domesticated state and then reverted to life in
wild conditions, or it may be an animal that grew up in essentially wild conditions but has developed a comfort level with humans through feeding, receiving medical care, or similar contacts.
Species of semi-feral animals
Semi-feral or stray
cats live in proximity to humans who may be accustomed to their presence but have no owner; they are distinct from
feral cat
A feral cat or a stray cat is an unowned domestic cat (''Felis catus'') that lives outdoors and avoids human contact; it does not allow itself to be handled or touched, and usually remains hidden from humans. Feral cats may breed over dozens ...
s, which have no regular food source. They are usually regularly fed in locations where food is left for no one cat in particular, and they find shelter "accidentally", such as in farm buildings, and sometimes deliberately from humans. A common reason to tolerate and even nourish these cats is so they kill vermin, or because of a general favorable feeling toward cats. Usually semi-ownership of cats contributes to cat overpopulation and excessive breeding when people nourish but do not neuter the cats. Some studies claim this can be disastrous for wild animal species, especially birds and a great number of bird species have become extinct because of domesticated cats which were not kept inside,
although this is disputed in the scientific literature.

Of
horse breeds, the French
Camargue was once thought of as a wild species, though increased contact with humans has made it semi-feral. These horses still breed in herds and graze throughout plains unhindered, though ranchers (known as ''gardians'', "Camargue cowboys", and ''manadiers'', "ranchers") regularly round them up to check on newborn foals. If captured, Camargue horses, generally steady-footed and considered reliable, are usually used to herd cattle. Other types of mostly free-ranging horses, such as
those in Iberia and the
Exmoor
Exmoor () is loosely defined as an area of hilly open moorland in west Somerset and north Devon in South West England. It is named after the River Exe, the source of which is situated in the centre of the area, two miles north-west of Simons ...
,
New Forest
The New Forest is one of the largest remaining tracts of unenclosed pasture land, heathland and forest in Southern England, covering southwest Hampshire and southeast Wiltshire. It was proclaimed a royal forest by William the Conqueror, featu ...
,
Fell pony and
Dartmoor ponies, have owners which distinguishes them from truly
feral horse
A feral horse is a free-roaming horse of domesticated stock. As such, a feral horse is not a wild animal in the sense of an animal without domesticated ancestors. However, some populations of feral horses are managed as wildlife, and thes ...
s, such as the American
Mustang
The mustang is a free-roaming horse of the Western United States, descended from horses brought to the Americas by the Spanish conquistadors. Mustangs are often referred to as wild horses, but because they are descended from once-domesticate ...
or Australian
Brumby.

A high mortality rate exists among
free-ranging dogs (often called "strays"), even those supported by humans; the stray dog population is often replenished by domestic dogs. Most abandoned dogs in the Western world are taken to shelters, except in some dense North American urban centers and rural Southern Europe, particularly Italy, where abandoned dogs become feral or semi-feral. Some semi-feral dogs that receive a substantial portion of their diet from humans can afford to exert energy hunting prey; many dogs are unsuccessful hunters without human support. Semi-feral dogs are more likely to transmit disease than their domestic counterparts. Local cultural attitudes make how humans interact with stray dogs quite variable.

Many types of birds can be semi-feral, including
mute swan
The mute swan (''Cygnus olor'') is a species of swan and a member of the waterfowl family Anatidae. It is native to much of Eurasia, and (as a rare winter visitor) the far north of Africa. It is an introduced species in North America, home to ...
s,
mallard
The mallard () or wild duck (''Anas platyrhynchos'') is a dabbling duck that breeds throughout the temperate and subtropical Americas, Eurasia, and North Africa. It has been introduced to New Zealand, Australia, Peru, Brazil, Uruguay, Arge ...
s, and
barbary doves. Perhaps the best-known semi-feral bird is the
pigeon
Columbidae is a bird family consisting of doves and pigeons. It is the only family in the order Columbiformes. These are stout-bodied birds with small heads, relatively short necks and slender bills that in some species feature fleshy ceres. ...
, which people have been known to attract to their households for some 3,000 years. It is difficult to raise pigeons—they are monogamous,
altricial
Precocial species in birds and mammals are those in which the young are relatively mature and mobile from the moment of birth or hatching. They are normally nidifugous, meaning that they leave the nest shortly after birth or hatching. Altricial ...
, and require large spaces for flight—so a semi-feral method of trapping is presently the most efficient. From Egypt to West Africa large buildings have been constructed for the purpose of attracting semi-feral pigeons, some holding up to 1,000.
Bagot goats live semi-ferally in
Blithfield Hall in
Staffordshire
Staffordshire (; postal abbreviation ''Staffs''.) is a Ceremonial counties of England, ceremonial county in the West Midlands (region), West Midlands of England. It borders Cheshire to the north-west, Derbyshire and Leicestershire to the east, ...
, England, where they were introduced in the 14th century.
Buffalo can become feral when abandoned; in northern Australia, they are raised for slaughter despite not being fully domesticated. The semi-feral
Corriente cattle were killed for poor-quality beef in the 20th century and are now often used in rodeo. Semi-feral
sheep
Sheep (: sheep) or domestic sheep (''Ovis aries'') are a domesticated, ruminant mammal typically kept as livestock. Although the term ''sheep'' can apply to other species in the genus '' Ovis'', in everyday usage it almost always refers to d ...
have existed throughout Europe.
See also
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Domestication
Domestication is a multi-generational Mutualism (biology), mutualistic relationship in which an animal species, such as humans or leafcutter ants, takes over control and care of another species, such as sheep or fungi, to obtain from them a st ...
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Invasive species
An invasive species is an introduced species that harms its new environment. Invasive species adversely affect habitats and bioregions, causing ecological, environmental, and/or economic damage. The term can also be used for native spec ...
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Overpopulation in domestic pets
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Fell pony
References
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