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Pterodroma ultima

Murphy's Petrel

Speciesaccepted · checked 2026-08-05WoRMS 343984ITIS 174592key itis:174592
i

2026-08-05: worms_id 343984 via WoRMS TSN crosswalk (status accepted)

calcofi:seabirds

Murphy's petrel is a species of seabird and a member of the gadfly petrels. The bird is 38–41 cm length, with a 97 cm wingspan, and weighs about 360 g.W CalCOFI holds 130 observations of it in 1 dataset between 1987 and 2022.R

130
observations
130
records
130
sampling events
1987–2022
years
1
datasets
41 cm
max length
Photograph of Pterodroma ultima
Photo · Angela K. Kepler, no known copyright restrictions (public domain) · Public domain · 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:174592%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 41 cm max
Murphy's Petrel41 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 Pterodroma
Credits silhouette · photo · text · length
  • Silhouette · Anthony Caravaggi · CC0 1.0 · PhyloPic, drawn from Pterodroma · source
  • Photo · Angela K. Kepler, no known copyright restrictions (public domain) · Public domain · inat · source
  • Text · Wikipedia, “Murphy's petrel” · CC BY-SA 4.0 · revision 1347769892
  • Length · sealifebase
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 ↗