Game bird encyclopaedia
Grey Partridge
Perdix perdix (Linnaeus, 1758). A sedentary galliform of the cultivated plains of Eurasia, holder of one of the largest clutches of any bird, and now the symbol of the decline of wildlife on Europe's farmland plains.
Not to be confused with the red-legged partridge (Alectoris rufa), which belongs to a different genus — see the article Red-legged Partridge —, nor with the rock partridge (Alectoris graeca). For farm-reared birds intended for restocking, see the grey partridges for sale page.
Description
The grey partridge is a compact galliform 29 to 31 cm long, with a wingspan of 45 to 48 cm and a mass of between 350 and 450 g, around 400 g on average.[1][5] The plumage is cryptic, matched to cultivated land: rufous face and throat, finely vermiculated grey neck and breast, streaked grey-brown back, chestnut-barred flanks and a rufous tail, clearly visible in flight.[5] The adult male carries a rufous-brown horseshoe-shaped patch on the lower breast; this marking is absent or reduced in the female, but it is not entirely reliable for sexing birds, as some older females carry an almost complete horseshoe.[1][6] The surest sexing criterion is the pattern of the wing coverts and scapulars: in the female, these feathers carry a pale central stripe crossed by transverse bars — the so-called “cross of Lorraine” pattern —, whereas in the male they show only the central stripe, without bars.[6] The juvenile, yellowish-brown and streaked, acquires adult plumage during its first autumn.[5]
Taxonomy and systematics
The species was described by Carl Linnaeus in 1758 under the name Tetrao perdix, then moved to the genus Perdix, erected by the French zoologist Mathurin Jacques Brisson in 1760: this change of genus explains the parentheses around the author in the valid name, Perdix perdix (Linnaeus, 1758), a tautonym in which the genus name and the species epithet are identical.[2] Perdix is simply the Latin name for the partridge, itself taken from the ancient Greek perdix.[3] Seven to eight subspecies are generally recognised across the Eurasian range, forming a west-to-east gradient.[4] Three concern France: P. p. perdix, the nominate form of the northern and eastern plains; P. p. armoricana, darker and more rufous, in the west (Brittany, Normandy); and P. p. hispaniensis, the mountain grey partridge of the Pyrenees, genetically well differentiated and managed as a conservation unit in its own right.[4][6] The genus Perdix has only two other species, both Asian: the Daurian partridge (P. dauurica) and the Tibetan partridge (P. hodgsoniae). The red-legged and rock partridges belong to the separate genus Alectoris: the grey is not a variant of the red-legged, and the two species do not hybridise.[4][11]
Protonym and tautonym
Tetrao perdix Linnaeus, 1758 — reclassified in the genus Perdix erected by Brisson in 1760, giving the tautonym Perdix perdix.[2]
Etymology
Perdix, the Latin name for the partridge, borrowed from the ancient Greek perdix.[3]
Genus Perdix
Only three species: P. perdix, P. dauurica and P. hodgsoniae. The red-legged and rock partridges belong to Alectoris.[4]
Distribution
The natural range of the grey partridge covers most of temperate Europe — from the British Isles and France to southern Scandinavia and the Balkans — and extends across the steppes of Russia and Kazakhstan into Central Asia.[4][13] In France, the species broadly occupies the northern half of the country: the Paris Basin, Picardy, Champagne, the Beauce, Normandy and the north-east hold most of the lowland birds, while relict mountain populations survive in the Pyrenees — the subspecies hispaniensis — and on a few uplands of the Massif Central.[1][6] This distribution is almost complementary to that of the red-legged partridge, confined to the southern two thirds.[1][11] Outside its natural range, the grey partridge was successfully introduced into North America at the turn of the 20th century, mainly from Hungarian birds — hence its local name of “Hungarian partridge” — and now occupies the great cereal plains of southern Canada and the northern United States.[4][8]
Habitat and diet
The grey partridge is closely tied to open farmland: cereal plains, mosaic cropping, set-aside, lucerne and hedged farmland with low hedges. A sedentary species, it spends the whole year on a small home range of a few dozen hectares, which makes it highly dependent on the local quality of the habitat.[1][6] The fixed features of the landscape — grass strips, track verges, hedgerows, banks — provide it with nest sites, cover and food; their disappearance through land consolidation and ever-larger fields is one of the main causes of its decline.[6][7] The adult diet is dominated by plant matter: seeds of cereals and weeds, leaves of grasses and legumes, supplemented by invertebrates in the warmer months.[1][13] The chicks, on the other hand, are almost exclusively insectivorous during their first two to three weeks: sawfly larvae, aphids, ground beetles and grasshoppers make up most of their diet, and the Sussex study established that chick survival rates directly follow the abundance of these insects in field margins.[7][8] It is this food-chain link that makes the grey partridge a recognised indicator of the ecological health of cultivated plains.[7][12]
Breeding: the largest clutch in Europe
The winter coveys break up at the end of winter and the monogamous pairs settle in February-March.[6][13] The nest is a simple scrape in the ground, lined with dry grass and hidden in a hedgerow, a grassy margin or a tall crop.[1][6] The clutch, laid in May, is remarkable: 15 to 17 eggs on average, sometimes more than 20 — one of the largest clutches of any bird.[1][6] Incubation, by the female alone, lasts 24 to 25 days, with the male standing guard nearby; hatching peaks from mid-June to mid-July.[1][13] If the nest is destroyed — by mowing, predation or a storm —, a smaller replacement clutch is common.[6] The nidifugous chicks leave the nest within hours of hatching and are led by both parents; they can flutter at about two weeks and stay with the adults in the family covey until the end of the following winter.[6][13] This exceptional fecundity is offset by very high mortality: losses of ground nests, the chicks' sensitivity to cold, rain and lack of insects, and predation mean that breeding success varies greatly from year to year — and it is breeding success that governs population dynamics.[6][7]
Behaviour and covey life
The grey partridge lives in coveys: the summer family group — parents and the year's young — holds together through autumn and winter, sometimes joined by adults without a brood, forming groups of ten to twenty birds.[6][13] The covey feeds on the ground morning and evening, keeps close together while feeding and spends the night bunched in a circle, heads facing outwards, a behaviour that improves predator detection.[13] When disturbed, the grey flies up more readily than the red-legged partridge, which prefers to escape on foot: the flight is noisy, low and fast, broken by glides on bowed wings with the rufous tail clearly visible, and ends a few hundred metres away at most.[5][11] The male's call, a rusty two-syllable creak given at dusk — often transcribed “kirr-ic” —, carries far across the plain and is used to count pairs in spring.[5][6]
Roosting in a circle
The covey sleeps bunched together on the ground, heads facing outwards, to detect predators more easily.[13]
Grey partridge or red-legged partridge?
The two French partridges are often confused, but they belong neither to the same genus nor to the same world. The red-legged partridge, Alectoris rufa (Linnaeus, 1758), is slightly larger (32 to 34 cm) and far more colourful: coral-red bill and orbital ring, white throat edged with black, flanks barred with rufous, black and white.[11] The grey is smaller and duller, with a rufous face, a grey breast and the male's breast horseshoe.[1][5] Their habitats overlap little: the red-legged occupies the dry, sunny country of the southern two thirds — scrubland, hillsides, vineyards —, the grey the cereal plains and temperate hedged farmland of the northern half, plus the Pyrenean mountain populations.[1][11] Their escape behaviour differs too: the red-legged runs a long way before taking flight, the grey flies off more readily.[5][11] Belonging to separate genera, they do not hybridise — unlike the red-legged with the rock partridge within the genus Alectoris.[4][11] The article Red-legged Partridge covers the other species; for farm-reared birds, GIBIS has a page on the grey partridge of pure French strain.
Status, decline and management in France
Globally, the grey partridge is classed as Least Concern (LC) on the IUCN Red List because of its immense range; the 2016 Red List of the breeding birds of France uses the same category.[9][10] Yet this classification hides one of the most severe declines in European birdlife: population indices in Western Europe have fallen by more than 90% since the middle of the 20th century, a collapse documented from the 1980s onwards by the work of G. R. Potts and monitored continuously by the Sussex study and national counting networks.[7][8] The causes are known and ranked: the disappearance of field-margin insects due to herbicides and insecticides, which starves the chicks; the loss of fixed landscape features (hedgerows, banks, grass strips) through land consolidation; predation, whose impact increases in simplified landscapes; and June weather events, critical for young broods.[6][7][8] In France, the species remains huntable and is actively managed by the OFB and the hunters' federations: spring pair counts and summer covey sampling, hunting management plans, habitat agreements (catch crops, grass strips, feeding) and dedicated research programmes, including the PeGASE programme launched in 2017 to understand the collapse of lowland populations.[1][12] The Pyrenean population hispaniensis, isolated and genetically distinct, benefits from specific monitoring and management arrangements.[6] Accumulated experience points to one conclusion: the recovery of the grey partridge depends first on restoring habitat and the insect resource, since returns to the wild can only succeed on ground that has become welcoming again.[7][8][12]
Pyrenean grey partridge
The subspecies hispaniensis, isolated in the mountains, is monitored and managed as a separate conservation unit.[6]
At GIBIS
GIBIS has been rearing feathered game since 1951 at Chatte, in Isère, and maintains a breeding flock of grey partridges from pure French strains, with no crossbreeding. These birds, intended for restocking and shooting in the plains and hedged farmland of the northern half of France, are presented on the grey partridges for sale page; the partridge umbrella page compares the three species reared, and the principles of population reinforcement operations are detailed on the restocking page. This encyclopaedic article remains independent of those pages: it documents the wild species, its biological characters and its status, with no commercial aim.
A family farm since 1951
Production of feathered game and small game at Chatte, in Isère.
Pure French strain
A grey partridge flock kept without crossbreeding: see the grey partridges for sale page.
Restocking
Population reinforcement operations are detailed on the restocking page.
References
- ↑Office français de la biodiversité (OFB), species profile « Perdrix grise (Perdix perdix) », ofb.gouv.fr, accessed in 2026.
- ↑Brisson M. J., *Ornithologie, ou Méthode contenant la division des oiseaux en ordres, sections, genres, espèces et leurs variétés*, Paris, 1760 — erection of the genus *Perdix*.
- ↑Jobling J. A., *The Helm Dictionary of Scientific Bird Names*, Christopher Helm, London, 2010.
- ↑Madge S. & McGowan P. J. K., *Pheasants, Partridges and Grouse*, Christopher Helm, London, 2002.
- ↑Oiseaux.net, profile « Perdrix grise (Perdix perdix) », accessed in 2026.
- ↑Bro E., *La Perdrix grise : biologie, écologie, gestion et conservation*, Biotope Éditions, Mèze, 2016 (in French).
- ↑Potts G. R., *The Partridge: Pesticides, Predation and Conservation*, Collins, London, 1986.
- ↑Game and Wildlife Conservation Trust (GWCT), « Grey partridge », gwct.org.uk, accessed in 2026.
- ↑BirdLife International, *Perdix perdix* profile, IUCN Red List of Threatened Species, 2018 assessment.
- ↑UICN France, MNHN, LPO, SEOF & ONCFS, *La Liste rouge des espèces menacées en France — Chapitre Oiseaux de France métropolitaine* (Red List of threatened species in France — birds of mainland France), Paris, 2016.
- ↑Office français de la biodiversité (OFB), species profile « Perdrix rouge (Alectoris rufa) », ofb.gouv.fr, accessed in 2026.
- ↑PeGASE programme (Perdrix grise, agrosystèmes et environnement), OFB / FNC / departmental hunters' federations, launched in 2017.
- ↑Cramp S. & Simmons K. E. L. (eds.), *The Birds of the Western Palearctic*, vol. II, Oxford University Press, Oxford, 1980.
See also
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This article is part of the game bird encyclopaedia of GIBIS, a breeder at Chatte (Isère) since 1951. For a question about the species or about our pure French strain grey partridges, the team can be reached by telephone or e-mail.