CalCOFI.io CalCOFI.io open data ecosystem

Podiceps grisegena

Red-Necked Grebe

Speciesaccepted · checked 2026-08-05WoRMS 137183ITIS 174479key itis:174479
i

2026-08-05: worms_id 137183 via WoRMS TSN crosswalk (status accepted)

calcofi:seabirds

The red-necked grebe is an aquatic bird found in the temperate regions of the northern hemisphere. A migratory bird, its wintering habitat is largely restricted to calm waters just beyond the waves around ocean coasts, although some birds may winter on large lakes.W CalCOFI holds 2 observations of it in 1 dataset between 1991 and 2017.R

2
observations
2
records
2
sampling events
1991–2017
years
1
datasets
Podiceps grisegena (Boddaert, 1783), Red-necked Grebe, Klydesø reserve, Amager, Copenhagen, Denmark, 26 March 2017
Photo · Donald Hobern from Copenhagen, Denmark · CC BY 2.0 · commons

Observed in 1 dataset
i

One row per dataset, and beside it one cell per year, darker with more observations — the same strip the front door draws per dataset. Each row ends with the name that dataset uses (dataset_taxon); the accepted name is written once, in the title above. A quiet pill marks a name the authority does not accept.

Ways inExplorerdb-queryERDDAPRPythonThis page as JSON

Code and endpoints ERDDAP · R · Python · JSON
ERDDAPCalCOFI's own server, the Seabirds & Marine Mammals table constrained to this taxon
https://erddap.calcofi.io/erddap/tabledap/farallon_bird-mammal.html?&taxon_key=%22itis:174479%22

Read from taxa.json of release v2026.10.21, written at release by calcofi4db::build_taxa_catalog(). The catalog's index is /species/.

How big is it not on record

Not on record: no authority the fetcher reads carries a length for this taxon.

Lineage 11 ranks · Animalia to Podiceps
Credits silhouette · photo · text
Elsewhere Wikidata · iNaturalist · GBIF · eBird

WikidataiNaturalistGBIFeBird

The same organism on the services the faces were fetched from; the authorities' own pages are the ids in the head.

Cite the release, v2026.10.21

Cite the release, v2026.10.21; each dataset's own citation, licence and DOI are on its page. How to cite ↗