
Chicken
Gallus gallus domesticus
Quick answer
Chickens descend from red junglefowl domesticated in Southeast Asia over 8,000 years ago — over 25 billion alive at any time for eggs and meat. Weighing about 2.5 kg, living 8 years in backyards, and reaching 15 km/h, hens communicate with dozens of distinct calls.
Also available in Español (Gallina)
Chicken facts at a glance
| Scientific name | Gallus gallus domesticus |
|---|---|
| Diet | Omnivore — grain, insects, vegetation, and scraps |
| Habitat | Domestic worldwide; origin in Southeast Asian forest edge |
| Lifespan | 5–10 years (backyard); commercial layers shorter |
| Weight | 1.5–3 kg (3.3–6.6 lb); breeds vary widely |
| Top speed | Up to 15 km/h (9 mph); brief fluttering flight |
| Conservation status | Domesticated (IUCN) |
| Kingdom | Animalia |
|---|---|
| Phylum | Chordata |
| Class | Aves |
| Order | Galliformes |
| Family | Phasianidae |
| Genus | Gallus |
Where it lives
Domesticated worldwide; wild ancestor red junglefowl native to Southeast Asian forest edges.
What is a group of chickens called?
Group name (collective noun)
A group of Chickens is called a flock.
Baby name
A baby Chicken is called a chick.
Explore more animal collective nouns and baby animal names .
Distribution and habitat
Chickens live in Domesticated worldwide; wild ancestor red junglefowl native to Southeast Asian forest edges. Preferred habitat includes domestic worldwide; origin in southeast asian forest edge. Across Africa, Asia, Europe, North America, Oceania, South America, population density reflects prey availability, water access, and human disturbance. Protected areas and wildlife corridors remain essential for long-term persistence.
Physical traits and behaviour
Chickens typically reach about 0.5 m in length and 2.5 kg in weight, with top speeds near 15 km/h. The world's most common bird. Daily activity, social structure, and seasonal movements reflect pressures in their native environment.
Diet and ecological role
Chickens feed on omnivore — grain, insects, vegetation, and scraps. Foraging shifts with season and local abundance. As birds, they influence food webs — controlling prey, dispersing seeds, or shaping habitat through feeding and movement.
Conservation and coexistence
Listed as Domesticated on the IUCN Red List. Habitat loss, hunting, and climate change threaten many populations. Responsible ecotourism and community conservation help in parts of their range. Never approach or feed wild chickens.
Human interest and research
Chickens feature in folklore, tourism, and scientific study worldwide. Ongoing research tracks population trends, genetics, and responses to environmental change — data that guides national protection policies.
Dig deeper into the Chicken
- Chicken Facts 4
Dig deeper into chicken — chicken facts 4.
- Chicken Facts 5
Dig deeper into chicken — chicken facts 5.
- How Long do Chicken Live?
Dig deeper into chicken — how long do chicken live.
- What do Chicken Eat
Dig deeper into chicken — what do chicken eat.
- Where do Chicken Live?
Dig deeper into chicken — where do chicken live.
Explore the Chicken
Related Birds
Did you know? Chicken facts
- Chickens are domesticated junglefowl raised globally for eggs and meat — over 25 billion alive at any time.
- Brief fluttering flights over fences — not sustained flight.
- Backyard hens often reach 8–10 years; commercial layers are shorter.
- Conservation: Domesticated.
Diet & feeding
Chicken feeds primarily as a omnivore — grain, insects, vegetation. Hens teach chicks what to eat and maintain strict pecking orders.
Adaptations
- Chickens were domesticated in Southeast Asia over 8,000 years ago.
- Hens teach chicks what to eat and maintain strict pecking orders.
Behaviour & ecology
- Chickens were domesticated in Southeast Asia over 8,000 years ago.
- Hens teach chicks what to eat and maintain strict pecking orders.
Communication
- Chicken uses calls and visual displays to communicate territory, alarm, and breeding status.
- Vocal repertoires vary by species and are often learned or refined during development.
Habitat & range
Domestic worldwide
Ecological role
Chicken contributes to seed dispersal, insect control, or nutrient cycling depending on diet and foraging habits.
Frequently asked questions about the Chicken
Where do chickens live?
Domesticated worldwide; wild ancestor red junglefowl native to Southeast Asian forest edges.
What do chickens eat?
Omnivore — grain, insects, vegetation, and scraps.
How long do chickens live?
About 8 years in the wild on average.
Are chickens endangered?
IUCN status: Domesticated.
What is a group of chickens called?
A group of Chickens is called a flock.
What is a baby chicken called?
A baby Chicken is called a chick.
Sources & references
This guide is compiled and reviewed against established zoological and conservation references. Key sources for the Chicken:
-
IUCN Red List of Threatened Species
Conservation status (Domesticated) reflects the IUCN Red List category for Gallus gallus domesticus.
- IUCN Red List — Gallus gallus domesticus.
Conservation status (Domesticated) and population trends.
- Animal Diversity Web — Gallus gallus domesticus. University of Michigan Museum of Zoology.
Life history, morphology, and range.
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Global Animal Guide editorial standards
How we research, source, review, and update every guide for accuracy.


