Numididae

Accepted Numididae membership

Record the authority and taxon concept supporting inclusion, retaining disagreements between classifications.

1. Which classification and version determine the genera and species included in Numididae? definition
2. Does the supplied name resolve to this family, a member species, a domestic designation or a different galliform taxon? boundary

Species-to-family transfer

Require an explicit applicability judgement before transferring observations about one member to another.

1. Does this claim concern Numididae generally, one species, a domestic line or a particular flock? boundary
2. What evidence supports applying this claim beyond the guineafowl population originally studied? provenance

Diagnostic feature combination

Preserve positive, absent and unobservable features separately for each candidate identification.

1. Which casque or crest, bare-skin, wattle and plumage features are actually visible? measurement
2. Which combination separates this candidate from other guineafowl, chickens, turkeys and locally plausible galliform birds? boundary
3. Could life stage, moult or a documented domestic colour variant explain an apparent mismatch? boundary

Call and origin corroboration

Link recordings and locality evidence to the observed bird while keeping them distinct from proof of identity.

1. Can the recorded call be attributed to this bird and matched to a verified species reference? provenance
2. Does locality support the candidate, or could captive origin, escape or introduction explain the occurrence? boundary
3. What additional non-invasive evidence would resolve the remaining identification alternatives? action

Stage-adjusted condition

Record mass trends and observable feeding and movement, distinguishing untested abilities from impairment.

1. What evidence distinguishes a keet, juvenile and adult in the assigned species? definition
2. What changes in mass, gait, feeding, plumage or alertness are observed relative to this bird's previous state? measurement
3. Which observed deficits require specialist assessment before handling or movement is considered? action

Reproductive unit state

Record nest activity, brood composition and attendance evidence needed to judge disturbance or separation.

1. What observations establish active nesting, incubation or attendance of young? measurement
2. Which nearby birds, eggs or keets have an evidenced relationship to this reproductive unit? provenance
3. Would the proposed visit, capture or relocation separate dependent young or disturb an active nest? action

Functional habitat use

Record feeding substrates, consumed items, cover and actual roost use without importing one species' habitat preferences.

1. Where and on what does this guineafowl group actually forage? measurement
2. Which resting or roosting sites are used, and what evidence shows that the birds can reach them? measurement
3. Would a proposed habitat or enclosure change remove a demonstrated feeding area, refuge or roost? action

Interpretable flock change

Distinguish measured group changes from missed birds, repeated counts or altered visibility.

1. How many birds and young were observed, with what effort, visibility and risk of double-counting? measurement
2. Could apparent isolation or flock reduction reflect breeding, movement or detection conditions rather than loss? boundary
3. Which repeat observation would help distinguish these explanations without disrupting the group? action

Provenance and contact state

Keep evidence of management, ownership and contact separate from assumptions based on tameness or location.

1. What records or observations support wild, domestic, captive or feral status for these birds? provenance
2. What recent contact with poultry, transported birds or unfamiliar guineafowl groups is documented? provenance
3. What provenance or specialist assessment is missing before these birds can be moved or mixed with another flock? action

Intervention eligibility

Link capture, relocation, release or husbandry changes to a stated objective and externally established requirements.

1. Which species- and location-specific conservation assessment or documented threat applies to this population? provenance
2. What outcome is intended, and how would intervention affect flock relationships, dependent young and recipient populations? action
3. Which applicable permissions and competence requirements are established, and which remain unresolved? action

Kinds and varieties

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

• Helmeted guineafowl (Numida meleagris), including domestic stock
• Vulturine guineafowl (Acryllium vulturinum)
• White-breasted guineafowl (Agelastes meleagrides)
• Black guineafowl (Agelastes niger)
• Plumed guineafowl (Guttera plumifera)
• Eastern crested guineafowl (Guttera pucherani)
• Western crested guineafowl (Guttera verreauxi)
• Southern crested guineafowl (Guttera edouardi)

1. Which of these kinds and varieties hold for the sense of Numididae this model covers, and on what evidence? provenance

Identifiers and schemes

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

• Wikidata - Q171953 - Family Numididae (not the Wikimedia category Q6671606).
• ITIS TSN - 176121 - Family Numididae; genus Numida is TSN 176125.
• NCBI Taxonomy - 8990 - Family Numididae.
• GBIF taxon ID - 5260 - Family Numididae.
• Catalogue of Life - DFV - Accepted family; COL attributes the name to Reichenbach, 1850.
• iNaturalist taxon ID - 1426 - Family Numididae.
• Avibase - numidi1 - Family-level Avibase identifier used by Birds of the World.
• IRMNG - 104837 - Family Numididae.

1. Which of these identifiers and schemes hold for the sense of Numididae this model covers, and on what evidence? provenance

Standards and regulation

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

• ICZN (International Commission on Zoological Nomenclature) governs the family-group name; authorship is cited as de Sélys Longchamps, 1842 in much ornithological usage and as Reichenbach, 1850 in Catalogue of Life/ITIS.
• IOC World Bird List (International Ornithologists' Union) is the checklist that currently treats eight living species, including the split of crested Guttera.
• IUCN Red List assessments, compiled for birds by BirdLife International, assign threat categories to each species (one of eight Vulnerable as of the Birds of the World/IUCN 2025 snapshot).
• CITES does not generally list guineafowl; BirdLife's Guttera verreauxi factsheet records no international trade controls for that species.
• Wild harvest is governed by national hunting and wildlife laws in range states; farmed Numida meleagris is treated as poultry under national meat-hygiene and animal-health rules where it is produced.

1. Which of these standards and regulation hold for the sense of Numididae this model covers, and on what evidence? provenance

Real-world use

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

• Wild flocks of helmeted and vulturine guineafowl are a regular safari bird in African savanna; the remaining species are forest and woodland birds and are much less often seen.
• Helmeted guineafowl is widely domesticated and kept in village scavenging, semi-intensive, and intensive systems for meat and eggs, especially in West Africa, and as a farmed 'pintade' in Europe and elsewhere.
• Young farmed birds are marketed at about 1 kg live weight as a game-like table bird; adults are also kept for eggs (on the order of 80 eggs per hen per year in backyard flocks, higher under intensive management).
• On farms and large properties they are kept as noisy sentinels and as foragers of ticks and other invertebrates.
• White-breasted and other forest species are hunted and lose habitat; they appear in conservation planning rather than in husbandry.

1. Which of these real-world use hold for the sense of Numididae this model covers, and on what evidence? provenance

Typical measurements

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

• Adult body mass (helmeted guineafowl) - 1.15-1.60 - kg
• Body length (helmeted guineafowl) - 53-63 - cm
• Body length (white-breasted guineafowl) - up to 45 - cm
• Clutch size (helmeted; communal dumps higher) - 6-13 (observed 5-19) - eggs
• Egg mass (helmeted) - 29-43 - g
• 14-week live mass (Nigerian indigenous helmeted) - 0.92-0.98 - kg
• Dressing percentage (same, 14 weeks) - 74-76 - %
• Eggs per hen per year (backyard to intensive) - 80-147 - eggs/year

1. Which of these typical measurements hold for the sense of Numididae this model covers, and on what evidence? provenance

Failure modes and hazards

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

• Primary-forest loss and hunting have made white-breasted guineafowl Vulnerable; other forest species remain poorly known and hard to monitor.
• Helmeted populations have declined locally from habitat destruction, hunting, and overexploitation.
• Ground nests and clutches are exposed to predation; unusually large 'clutches' are often dump-nests of several females.
• Flocks feed in cultivated fields and are treated as crop pests in some farming areas.
• As farm poultry they are subject to ordinary galliform production losses (keet mortality, disease, predation); this review did not read a disease-specific standard for the family.

1. Which of these failure modes and hazards hold for the sense of Numididae this model covers, and on what evidence? provenance

Regional variation

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

• Living-species counts differ by checklist: older treatments and some regional books still use six species by lumping crested Guttera; IOC World Bird List v15.1 uses eight by recognising G. pucherani, G. verreauxi, and G. edouardi.
• Family authorship is cited as de Sélys Longchamps, 1842 or Reichenbach, 1850 depending on the nomenclator.
• English 'guineafowl/guinea fowl', French 'pintade', Italian 'faraona', Afrikaans 'tarentaal', and many local African names (Catalogue of Life lists dozens of vernaculars).
• Helmeted guineafowl is native across much of sub-Saharan Africa and is the only widely introduced and farmed member; vulturine is a northeast-African dry-country bird; Agelastes and Guttera plumifera are Congo-Upper Guinea forest birds.
• Domestic colour strains used in exhibition and village flocks (pearl, white, lavender, and in Nigeria also black) apply to Numida meleagris, not to the forest species.

1. Which of these regional variation hold for the sense of Numididae this model covers, and on what evidence? provenance

Neighbouring kinds and how to tell them apart

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

• Phasianidae (pheasants, francolins, junglefowl) - Guineafowl were long treated as a phasianid subfamily; they are now a separate family that diverged tens of millions of years ago. Separate them by the typically bare head (casque, wattles, or crest) plus current galliform phylogenies, not by spotted plumage alone.
• Odontophoridae (New World quail) - Phylogenetically adjacent (Numididae branch after Cracidae and before Odontophoridae) and similarly often monogamous, but New World, smaller, and without the guineafowl head ornaments.
• Turkeys (Meleagris) - Similar bare-headed, wattled look and a shared epithet (meleagris/meleagrides), but turkeys are New World, much larger, and not members of Numididae; range and osteology/genetics separate them.
• Partridges and other small galliforms - Guineafowl can look partridge-like in body plan; the unfeathered head (and, in Guttera, the black crest; in Numida, the bony helmet) is the field test.
• Domestic chicken (Gallus gallus domesticus) - Kept in the same village and intensive systems; chickens have a comb and hackles rather than a casque, different voice, and different egg shape/shell, and belong to Phasianidae.

1. Which of these neighbouring kinds and how to tell them apart hold for the sense of Numididae this model covers, and on what evidence? provenance