CalCOFI.io CalCOFI.io open data ecosystem

Gavia immer

Common Loon

Speciesaccepted · checked 2026-08-05WoRMS 137187ITIS 174469key itis:174469
i

2026-08-05: worms_id 137187 via WoRMS TSN crosswalk (status accepted)

calcofi:seabirds

The common loon or great northern diver is a large member of the loon, or diver, family of birds.W CalCOFI holds 180 observations of it in 1 dataset between 1987 and 2022.R

180
observations
180
records
180
sampling events
1987–2022
years
1
datasets
A Great Northern Loon (also known as the Great Northern Diver and the Common Loon) in Minocqua, Wisconsin, USA.
Photo · John Picken from Chicago, USA · 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:174469%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 Gavia
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 ↗