Species · accepted · checked 2026-08-05

Gavia immer

Common Loon

WoRMS 137187ITIS 174469key itis:174469

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

Silhouette · T. Michael Keesey · CC BY 3.0 · PhyloPic, drawn from Gavia immer

Size · not on record: no authority the fetcher reads carries a length for this taxon.

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

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

Observed in
i
One row per dataset, 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.

Seabirds & Marine Mammals 180 obs · 180 events · 1987–2022
name used: Gavia immer Common Loon · code COLO

Groups

calcofi:seabirds

Ways in
i
Read from taxa.json of release v2026.09.11, written at release by calcofi4db::build_taxa_catalog(). The catalog's index is /species/.

Explorer db-query

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

Gavia immer

Groups

Ways iniRead from taxa.json of release v2026.09.11, written at release by calcofi4db::build_taxa_catalog(). The catalog's index is /species/.

Ways in
i
Read from taxa.json of release v2026.09.11, written at release by calcofi4db::build_taxa_catalog(). The catalog's index is /species/.