Observed fact
GBIF reports a coordinate-bearing occurrence against a country, month or year facet after excluded record types are removed.
Dataset evidence and provenance
A public ledger for what this site measures, when its aggregates were generated, how entities are joined, and where interpretation begins.
- 3,951 species pages
- 250 countries and territories
- 2,104,422,299 indexed occurrence records
- 2026-08-22 policy version
Current public aggregates
| Layer | Generated | Stable identity | Public fields |
|---|---|---|---|
| Country index | 2026-08-22 | ISO alpha-2 code | Name and occurrence-record count |
| Species index | 2026-08-22 | GBIF taxon key + canonical scientific name | Taxonomy, country/month/year facets and record counts |
Evidence ladder
Transparent calculation
The site totals facets, finds each monthly peak, and counts months reaching at least 10% of that peak.
Labelled inference
Resident, seasonal, vagrant and historical labels summarise the record pattern. They are not formal range or conservation assessments.
Source and publication boundary
The public counts derive from GBIF occurrence facets. The build keeps coordinate-bearing records from an explicit allow-list and excludes fossils and living/captive specimens. The pooled aggregate is published under the most restrictive contributing licence, CC BY-NC 4.0.
Exact observation coordinates remain private because the held extract does not contain every uncertainty, withholding, generalisation and sensitivity field needed for safe publication. Read the full location and licensing gate.
Freshness and revision
The Worker checks the build weekly. A full occurrence refresh is normally due only after the last completed cycle
is at least 28 days old; each rebuilt entity records its own generation date. Method changes are versioned in source
control and the current release SHA is returned in the x-release-sha response header.