NATURAL HISTORY · CATALOGUE RECORD
Ring-billed Gull
Larus delawarensis Ord, 1815
Source-backed taxonomic record
Accepted species in Catalogue of Life’s 11 September 2026 base release. This preserves the source classification and available supporting data; it is not a completed species monograph.
breeding adult Ring-billed Gull (Larus delawarensis) in Toronto, Ontario, Canada
User:Mdf · CC BY-SA 3.0 · Image sourceProvider-generated thumbnail requested at 800 pixels; no local editing Local WebP display rendition; resized without cropping.
Open encyclopedia reference
The ring-billed gull (Larus delawarensis) is a medium-sized gull native to North America, breeding in Canada and the northern Contiguous United States, and wintering mainly in the United States and northern Mexico. The genus name is from Latin Larus which appears to have referred to a gull or other large seabird. The specific delawarensis refers to the Delaware River.
Wikipedia contributors, Ring-billed gull; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T05:37:02.899995+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Larus delawarensis Ord, 1815
- Name authority
- Ord, 1815
- Common name
- Ring-billed Gull
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Aves
- Order
- Charadriiformes
- Family
- Laridae
- Genus
- Larus
- Extinction status
- Recorded extant
Classification family tree
Nested taxonomic groups from the source. This is not a direct-ancestor chain, a dated evolutionary tree or a phylogenetic reconstruction.
- domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
- kingdomAnimalia
- phylumChordata
- subphylumVertebrata
- infraphylumGnathostomata
- parvphylumOsteichthyes
- megaclassTetrapoda
- classAves
- orderCharadriiformes
- familyLaridae
- genusLarus Linnaeus, 1758
- speciesLarus delawarensis Ord, 1815
Close classified relatives
These entries share the source’s genus, Larus. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Olrog's GullLarus atlanticus Olrog, 1958 | LaridaeChordata | Accepted speciesRecorded extant |
| California GullLarus californicus Lawrence, 1854 | LaridaeChordata | Accepted speciesRecorded extant |
| Common GullLarus canus Linnaeus, 1758 | LaridaeChordata | Accepted speciesRecorded extant |
| Lesser Black-backed GullLarus fuscus Linnaeus, 1758 | LaridaeChordata | Accepted speciesRecorded extant |
| Glaucous-winged GullLarus glaucescens J. F. Naumann, 1840 | LaridaeChordata | Accepted speciesRecorded extant |
| Iceland GullLarus glaucoides B. Meyer, 1822 | LaridaeChordata | Accepted speciesRecorded extant |
| Western GullLarus occidentalis Audubon, 1839 | LaridaeChordata | Accepted speciesRecorded extant |
| Slaty-backed GullLarus schistisagus Stejneger, 1884 | LaridaeChordata | Accepted speciesRecorded extant |
| American Herring GullLarus smithsonianus Coues, 1862 | LaridaeChordata | Accepted speciesRecorded extant |
| Vega GullLarus vegae Palmén, 1887 | LaridaeChordata | Accepted speciesRecorded extant |
| Heermann's GullLarus heermanni Cassin, 1852 | LaridaeChordata | Accepted speciesRecorded extant |
| Short-billed GullLarus brachyrhynchus Richardson, 1831 | LaridaeChordata | Accepted speciesRecorded extant |
Documented distribution
Source distribution statements, not a complete range map. A listed locality is not necessarily a place of origin.
Middle America
North America
Oceania
Source literature & publication evidence
References attached to this source record, including nomenclatural citations where supplied. This is a selected bibliography; abbreviated citations remain in the source’s form.
- https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=176830 Source fields: Taxon.tsv dwc:namePublishedIn, Taxon.tsv dcterms:references
Origins, evidence & remaining research
Name authority and publication references document nomenclature where the source supplies it. They do not establish evolutionary origins or the earliest fossil occurrence.
Specimen-level evidence, morphology, ecological research, phylogenetic studies, a comprehensive bibliography and a located literary passage have not yet been compiled for this record.
Dataset citation & attribution
This exact taxon in ChecklistBank · Catalogue of Life 2026-09-11
Catalogue of Life 2026-09-11; dataset 316321; doi:10.48580/dgz5n. https://creativecommons.org/licenses/by/4.0/ . Retrieved 5 October 2026.
Stable key: col:3SBQ4. Classification follows source parent identifiers. English common names may vary by region.