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Species · accepted · checked 2026-08-05

Cepphus columba

Pigeon Guillemot

WoRMS 343902ITIS 176991key itis:176991
i

2026-08-05: worms_id 343902 via WoRMS TSN crosswalk (status accepted)

Silhouette · T. Michael Keesey · CC0 1.0 · PhyloPic, drawn from Miocepphus blowi
Pigeon Guillemot35 cm
bongo net ring71 cm

max · sealifebase

Pigeon Guillemot, nominate subspecies Cepphus columba columba, Avachinskiy Zaliv, Kamchatka, Russia.
Photo · valerkov · CC BY 4.0 · commons

The pigeon guillemot is a species of bird in the auk family, Alcidae. One of three species in the genus Cepphus, it is most closely related to the spectacled guillemot.W CalCOFI holds 55 observations of it in 1 dataset between 1987 and 2019.R

55
observations
55
records
55
sampling events
1987–2019
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.

How big is it
i

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.

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/.

Explorerdb-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:176991%22