Cited by 149Archaeology and ancient environmental studiesLivestock and Poultry ManagementArchaeological and Geological Studies

The DOI matches its Crossref record; 93 of the 93 references it cites were found in a registry or an index; 47 of the 143 sources its claims cite were checked for support.

The biocultural origins and dispersal of domestic chickens

Open access

Abstract

Though chickens are the most numerous and ubiquitous domestic bird, their origins, the circumstances of their initial association with people, and the routes along which they dispersed across the world remain controversial. In order to establish a robust spatial and temporal framework for their origins and dispersal, we assessed archaeological occurrences and the domestic status of chickens from ∼600 sites in 89 countries by combining zoogeographic, morphological, osteometric, stratigraphic, contextual, iconographic, and textual data. Our results suggest that the first unambiguous domestic chicken bones are found at Neolithic Ban Non Wat in central Thailand dated to ∼1650 to 1250 BCE, and that chickens were not domesticated in the Indian Subcontinent. Chickens did not arrive in Central China, South Asia, or Mesopotamia until the late second millennium BCE, and in Ethiopia and Mediterranean Europe by ∼800 BCE. To investigate the circumstances of their initial domestication, we correlated the temporal spread of rice and millet cultivation with the first appearance of chickens within the range of red junglefowl species. Our results suggest that agricultural practices focused on the production and storage of cereal staples served to draw arboreal red junglefowl into the human niche. Thus, the arrival of rice agriculture may have first facilitated the initiation of the chicken domestication process, and then, following their integration within human communities, allowed for their dispersal across the globe.

Overview

AI snapshot

Written from the paper’s full text.

TL;DR

This paper critically reassesses archaeological, iconographic, textual, and linguistic evidence for early chickens across >600 sites in 89 countries and argues that unambiguous domestic chickens appear only by ∼1650–1250 BCE in central Thailand, not in earlier China or Indus Valley contexts. It proposes that rice and millet cultivation created a human niche that attracted red junglefowl and catalyzed domestication, followed by rapid dispersal across Asia, Europe, and Africa.

Key findings

  • Reanalysis of >600 sites in 89 countries found the earliest unambiguous domestic chicken remains at Neolithic Ban Non Wat, central Thailand, dated ∼1650–1250 BCE; >95% of the avifauna there was ascribed to *Gallus*, with an exceedingly high proportion of juvenile bones and deposition as grave goods alongside domestic pigs, dogs, and bovines.
  • Claims for earlier chickens were not supported: northern China remains dated 11,000–8,000 y ago were pheasants, and key Indus Valley specimens from Mohenjo-daro and Harappa were misidentified, too large, or possibly intrusive; the earliest confident East Asian chickens date to the late Shang Dynasty ∼1350–1046 BCE, and South Asian poultry farming appears post-Harappan.
  • Dispersal was relatively late and rapid: chickens reached Ethiopia and Mediterranean Europe by ∼700 BCE, with the earliest directly dated southern European chickens from Italian Greek colonies dated 776–540 BCE; they arrived in Near Oceania in the early first millennium BCE, Hawaii ∼1200 CE, Australia 1788 CE, and New Zealand 1773 CE.
  • Rice and millet cultivation correlates with early chickens: sites with rice cultivation appeared within the distribution of *G. gallus spadiceus* from about 2000 BCE in southern Yunnan and northeast Thailand, suggesting cereal production and storage acted as a magnet for red junglefowl.

Methods

  • The authors critically assessed published faunal databases and publications for >600 archaeological sites in 89 countries, revisiting species identification, domestic status, stratigraphic integrity, and zooarchaeological/cultural context, and evaluating zoogeographic, morphological, osteometric, iconographic, written, and linguistic records.
  • They generated two datasets: confidently assigned domestic chicken remains (SI Appendix, Table S2) and ambiguous remains (SI Appendix, Table S3), and used 100 independent, confidently assigned, dated chicken remains for a spatial kriging interpolation of chicken arrival timing.
  • They correlated the resulting spatiotemporal pattern with human subsistence strategies, especially the appearance and spread of rice and millet agriculture.

Limitations

  • The paper states that additional archaeological investigations are necessary to test the chronology, and that new excavations may reveal earlier human–red junglefowl associations or earlier human-mediated translocations.
  • The paper states that establishing osteological criteria to separate wild junglefowl from domestic relatives, and generating simultaneous morphological, isotopic, and ancient genetic datasets, is essential to refine chicken origins and dispersal.
  • The paper notes that compiling the global dataset faced preservation, identification, recovery, and dating challenges; evident from the text, many determinations relied on published records or photographs rather than direct measurement of all bones, and geographic gaps remain, such as the lack of detailed avifaunal studies at prehistoric Yunnan sites.

Model-written summary. Check it against the paper before relying on it.

Integrity signals

Registry

Crossref · 10.1073/pnas.2121978119

Cites

93 of 93 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Verification

Claims the paper makes

47 of 143 cited sources checked · 22 supported · 0 flagged · accuracy not yet measured

Show all 99 claims

  • It may state two separate claims as one. 43
  • Probably not a substantial claim. 8
49 of 49
  • The paper relies on this without support.

    The current geographic distribution of G. gallus spadiceus approximates its distribution at the time of chicken domestication.

    “The first chickens were likely derived from a population of the subspecies G. gallus spadiceus, whose current range spans southwestern China, northern Thailand, and Myanmar (16) (Fig.1).”
  • The paper relies on this without support.

    The archaeological absence of chicken remains at a site or region reflects the true absence of chickens rather than recovery, preservation, or identification bias.

    “The evidence presented here demonstrates that chickens did not appear in archaeological contexts within Central China, South Asia, or Mesopotamia until the late second millennium BCE, just before their initial presence in Melanesia.”
  • The paper relies on this without support.

    The earliest securely identified domestic chicken remains in the dataset approximate the actual timing of chicken domestication or incorporation, rather than being limited by preservation, sampling, or detection.

    “Our conservative approach suggests that chickens were incorporated into human societies as domestic birds by 1500 BCE in peninsular Southeast Asia”
3 of 3

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

Each contradiction between two passages listed here was confirmed by an independent check.

  • Ban Non Wat is placed in two regions of Thailand

    Minor

    The paper locates Ban Non Wat in northeast Thailand in the Results but in central Thailand in the Discussion.

1 of 1

Citations

Cites

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Show all 91 references

Research works printed but not linked: 35

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  11. S. N. Bogoljubskij, Происхождение и преобразование домашних животных (Proischoždenie i preobrazovanie domašnich životnych) [in Russian]. (Sovetskaja Nauka, Moscow, 1959).
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Metadata

Authors
Peters, J., Lebrasseur, O., Irving-Pease, E. K., Paxinos, P. D., Best, J., Smallman, R., Callou, C., Gardeisen, A., Trixl, S., Frantz, L., Sykes, N., Fuller, D. Q., & Larson, G.
Affiliations
  • Bavarian Natural History Collections (DE)
  • Centre National de la Recherche Scientifique (FR)
  • University of Copenhagen (DK)
  • Ludwig-Maximilians-Universität München (DE)
  • Cardiff University (GB)
  • University of Exeter (GB)
  • Queen Mary University of London (GB)
  • Northwest University (CN)
  • University of Oxford (GB)
Corresponding author
  • Peters, Joris
  • Larson, Greger
Venue
Proceedings of the National Academy of Sciences
Published
2022-06-06
Volume
119
Issue
24
Pages
e2121978119-e2121978119
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W4282945975
Cited by
149
References
91
Citations by year
2026: 23 · 2025: 67 · 2024: 29 · 2023: 21 · 2022: 9
FWCI
56.53
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (publishedVersion, cc-by-nc-nd)
  • ORCA Online Research @Cardiff (Cardiff University) (acceptedVersion)
  • HAL (submittedVersion, cc-by-nc-nd)
  • Queen Mary Research Online (Queen Mary University of London) (submittedVersion, cc-by-nc-nd)
  • UCL Discovery (University College London) (submittedVersion)
  • Oxford University Research Archive (ORA) (University of Oxford) (submittedVersion, cc-by-nc-nd)
Funders
  • European Commission (HORIZON2020, 895107)
  • Agence Nationale de la Recherche (ANR-11-LABX-0032)
  • Lundbeckfonden (R302-2018-2155)
  • Novo Nordisk
  • Novo Nordisk Fonden (NNF18SA0035006)
  • H. Lundbeck A/S
  • Arts and Humanities Research Council (AH/L006979/1)
  • Natural Environment Research Council (NE/G005540/1, NE/K003402/1, NE/N010957/1)
  • H2020 European Research Council (853272)
  • FP7 Ideas: European Research Council (337574)
Topics
  • Social Sciences › Archeology › Archaeology and ancient environmental studies
  • Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Livestock and Poultry Management
  • Social Sciences › Arts and Humanities › Archeology (arts and humanities) › Archaeological and Geological Studies
Keywords
chickens, chicken domestication, red junglefowl, Ban Non Wat, rice cultivation, millet cultivation, cereal storage, human-nature interaction, zooarchaeology, osteometry
MeSH terms
Millets, Domestication, Animals, Animals, Domestic, Branchial Region, Chickens, Cultural Characteristics, Thailand

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