NATURAL HISTORY · CATALOGUE RECORD
Slaty-backed Gull
Larus schistisagus Stejneger, 1884
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.
Open encyclopedia reference
The slaty-backed gull (Larus schistisagus) is a large, white-headed gull that breeds on the north-eastern coast of the Palearctic, but travels widely during nonbreeding seasons. It is similar in appearance to the western gull and the glaucous-winged gull. Another alternate name is Pacific gull, though it also applies to a Southern Hemisphere species, L. pacificus.
Wikipedia contributors, Slaty-backed gull; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T06:36:26.218171+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Larus schistisagus Stejneger, 1884
- Name authority
- Stejneger, 1884
- Common name
- Slaty-backed 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 schistisagus Stejneger, 1884
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 |
| 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 |
| European Herring GullLarus argentatus Pontoppidan, 1763 | LaridaeChordata | Accepted speciesRecorded extant |
Documented distribution
Source distribution statements, not a complete range map. A listed locality is not necessarily a place of origin.
North America
Oceania
Southern Asia
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=176816 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. A suitable sourced image remains to be added.
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:3SBR4. Classification follows source parent identifiers. English common names may vary by region.