Aves · Opisthocomiformes
Hoatzin
Opisthocomus hoazin
The only avian foregut fermenter, using an enormous muscular crop containing symbiotic anaerobic bacteria to digest tough fibrous leaves like a bovine ruminant.
- Realm
- Freshwater
- Conservation status
- LCLeast Concern
This range is an occurrence-derived learning extent, not an official assessment range map. See the methodology page for the complete pipeline. GBIF.org occurrence density (GBIF Maps API v2) · 1° global raster; derived from GBIF per-cell occurrence density, vagrant-trimmed by a cumulative record-count threshold, morphologically closed, small-and-distant components pruned, clipped to a Natural Earth 1:110m realm mask.
Method and versionA sample of openly-licensed occurrence records retained after quality filtering. 1498 licence-filtered records across 84 1° cells, retrieved 2026-08-24.
Inspect on GBIFRetained datasets (8)
- APE Guatiquia (http://creativecommons.org/licenses/by/4.0/legalcode)
- Campo Cubiro Careto (http://creativecommons.org/licenses/by/4.0/legalcode)
- Campo Cubiro Copa (http://creativecommons.org/licenses/by/4.0/legalcode)
- GBIF mediated dataset (http://creativecommons.org/licenses/by/4.0/legalcode)
- GBIF mediated dataset (http://creativecommons.org/licenses/by/4.0/legalcode)
- GBIF mediated dataset (http://creativecommons.org/licenses/by/4.0/legalcode)
- iNaturalist research-grade observations (http://creativecommons.org/licenses/by/4.0/legalcode)
- MONITOREO CAMPO DE PRODUCCION COSECHA_2025_I (http://creativecommons.org/licenses/by/4.0/legalcode)