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Uria aalge

Common Murre

Speciesaccepted · checked 2026-08-05WoRMS 137133ITIS 176974key itis:176974
i

2026-08-05: worms_id 137133 via WoRMS TSN crosswalk (status accepted)

calcofi:seabirds

The common murre or common guillemot is a large auk, one of several species called murre or guillemot. It has a circumpolar distribution, occurring in low-Arctic and boreal waters in the North Atlantic and North Pacific.W CalCOFI holds 926 observations of it in 1 dataset between 1987 and 2022.R

926
observations
926
records
926
sampling events
1987–2022
years
1
datasets
43 cm
max length
Photograph of Uria aalge
Photo · Diego González Dopico · CC BY 4.0 · inat

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:176974%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 43 cm max
Common Murre43 cm
bongo net ring71 cm

max · sealifebase

Every mark is a measured length with its own source — hover one to read it. The reference objects are _data/size_reference.csv: two of them, the 505 µm bongo mesh and the net's ring, are CalCOFI's own sampling gear.

Lineage 11 ranks · Animalia to Uria
Credits silhouette · photo · text · length
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 ↗