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Presentation
The chicken is one of the most widespread domestic animals in the world. Descended from the Red Junglefowl of Southeast Asia, it has been selectively bred for thousands of years for egg and meat production. Today, hundreds of breeds coexist, offering great diversity in shape, color, and abilities.
The chicken displays dense, highly variable plumage in color depending on breed: red, black, white, gray, or multicolored. It features a fleshy comb on its head, wattles under the chin, and scaly legs usually yellow or gray. Hens are smaller and more subdued than roosters.
Characteristics
BREEDS
Indicative values: they vary by subspecies, sex and region.
Habitat and distribution
The chicken adapts to many environments. In traditional farming, it lives in henhouses and open enclosures with access to pastures or grassy areas. It prefers well-drained zones with protection from wind and predators.
CURRENT RANGE
The domestic chicken is found on all continents and is the most numerous domesticated bird species globally. It spread from Southeast Asia following trade routes and human migration, becoming ubiquitous in agriculture.
Behaviour
Chickens are gregarious and hierarchical, establishing a strict social order known as "pecking order." They spend much time scratching the ground and dust bathing for hygiene. They roost in elevated places at night for predator protection.
Reproduction
Chickens reach sexual maturity at 5-6 months of age. A hen lays eggs regularly, typically 200 to 300 per year depending on breed. Eggs hatch after 21 days of incubation. Chicks remain dependent on their mother for several weeks.
Peculiarities
The chicken has nearly panoramic vision due to the lateral position of its eyes. It communicates through various distinct vocalizations: clucking, brooding, cooing. The rooster has a more developed comb and wattles and emits distinct crow calls.
Threats and conservation
As a domestic species with no UICN status, the chicken faces no conservation threats. However, intensive farming raises animal welfare concerns, and diseases such as avian influenza can affect farmed populations.
Numbers and trends vary across sources and regions. See the IUCN assessment for the latest reference data.
Gallery
1 documented photographs.
References
Profile updated 08 August 2026 · Reviewed by the TunisieVet editorial team.
CONSERVATION STATUS
Not evaluated (NE)
IUCN source, latest published assessment.
Species health
Documented diseases for this species.
Find a veterinarianThis information is provided for educational purposes only and is not a substitute for a veterinary consultation. If you have any concerns about your animal's health, consult a veterinarian.
Similar animals
Other species documented in Animalpedia.