Pterodroma cookii
Cook's Petrel
i
2026-08-05: worms_id 225943 via WoRMS TSN crosswalk (status accepted)
Cook's petrel or tītī (Māori), blue-footed petrel, is a Procellariiform seabird endemic to New Zealand. It is a member of the gadfly petrels and part of the subgenus Cookilaria Bonaparte, 1856, which includes the very similar Stejneger's petrel.W CalCOFI holds 1,931 observations of it in 1 dataset between 1987 and 2022.R
- 1,931
- observations
- 1,931
- records
- 1,931
- sampling events
- 1987–2022
- years
- 1
- datasets
- 26 cm
- max length
Observed in 1 dataseti
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.
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.
-
name used: Pterodroma cookii Cook's Petrel · code
COPE
Ways inExplorerdb-queryERDDAPRPythonThis page as JSON
Code and endpoints ERDDAP · R · Python · JSON
library(calcofi4r) con <- cc_get_db() # the promoted release tbl(con, "obs_bio") |> filter(taxon_key == "itis:554395")
import calcofi4py as cc
con = cc.cc_get_db()
con.sql("SELECT * FROM obs_bio WHERE taxon_key = 'itis:554395'").df()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 26 cm max
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 · Aviceda at English Wikipedia (Original text: Tom (talk)) · CC BY 3.0 · commons · source
- Text · Wikipedia, “Cook's petrel” · CC BY-SA 4.0 · revision 1345512773
- Length · sealifebase
Elsewhere Wikidata · iNaturalist · GBIF · eBird
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 ↗