Species · accepted · checked 2026-08-06

Thalasseus maximus

Royal Tern

WoRMS 413040ITIS 824142key itis:824142

148
observations: 148
sampling events: 1988–2022
years: 1
datasets

Observed in

Seabirds & Marine Mammals 148 obs · 148 events · 1988–2022
name used: Thalasseus maximus Royal Tern · code ROYT re-keyed

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.

Groups

calcofi:seabirds

Note from the crosswalk

2026-08-06: worms_id 413040 via WoRMS TSN crosswalk (status accepted) 2026-08-05: worms_id 413040 via WoRMS TSN crosswalk (status accepted); WoRMS Sterna maxima unaccepted -> Thalasseus maximus; itis:176922 deprecated in ITIS -> itis:824142 (Thalasseus maximus)

Ways in

Explorermaps, sections and time series of this taxon — opens prefilled
https://calcofi.io/explore/?taxon=itis:824142
db-querySQL in your browser — the shell opens with this query
https://calcofi.io/db-query/?sql=SELECT+%2A+FROM+__TBL%3Aobs_bio__+WHERE+taxon_key+%3D+%27itis%3A824142%27+LIMIT+100%3B
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:824142%22

library(calcofi4r)
con <- cc_get_db()                      # the promoted release
tbl(con, "obs_bio") |> filter(taxon_key == "itis:824142")

Python

import calcofi4py as cc
con = cc.cc_get_db()
con.sql("SELECT * FROM obs_bio WHERE taxon_key = 'itis:824142'").df()

This page as data

JSONthis taxon's entry of the release record, verbatim
https://calcofi.io/species/itis-824142.json

Read from taxa.json of release v2026.09.06, written at release by calcofi4db::build_taxa_catalog(). The catalog's index is /species/.