NATURAL HISTORY · CATALOGUE RECORD
Bonaparte's Gull
Chroicocephalus philadelphia (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.
Open encyclopedia reference
Bonaparte's gull (Chroicocephalus philadelphia) is a gull found mainly in northern North America. At 28 to 38 cm (11 to 15 in) in length, it is one of the smallest species of gull. Its plumage is mainly white with grey upperparts. During breeding season, Bonaparte's gull gains a slaty-black hood. The sexes are similar in appearance.
Wikipedia contributors, Bonaparte's gull; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T05:25:09.021902+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Chroicocephalus philadelphia (Ord, 1815)
- Name authority
- (Ord, 1815)
- Common name
- Bonaparte's Gull
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Aves
- Order
- Charadriiformes
- Family
- Laridae
- Genus
- Chroicocephalus
- 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
- genusChroicocephalus Eyton, 1836
- speciesChroicocephalus philadelphia (Ord, 1815)
Close classified relatives
These entries share the source’s genus, Chroicocephalus. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Brown-headed GullChroicocephalus brunnicephalus (Jerdon, 1840) | LaridaeChordata | Accepted speciesRecorded extant |
| Gray-hooded GullChroicocephalus cirrocephalus (Vieillot, 1818) | LaridaeChordata | Accepted speciesRecorded extant |
| Black-headed GullChroicocephalus ridibundus (Linnaeus, 1766) | LaridaeChordata | Accepted speciesRecorded extant |
| Andean GullChroicocephalus serranus (Tschudi, 1844) | LaridaeChordata | Accepted speciesRecorded extant |
| Brown-hooded GullChroicocephalus maculipennis (M. H. K. Lichtenstein, 1823) | LaridaeChordata | Accepted speciesRecorded extant |
| Hartlaub's GullChroicocephalus hartlaubii (Bruch, 1855) | LaridaeChordata | Accepted speciesRecorded extant |
| Black-billed GullChroicocephalus bulleri (F. W. Hutton, 1871) | LaridaeChordata | Accepted speciesRecorded extant |
| Saunders's GullChroicocephalus saundersi Swinhoe, 1871 | LaridaeChordata | Accepted speciesRecorded extant |
| Slender-billed GullChroicocephalus genei (Brème, 1839) | LaridaeChordata | Accepted speciesRecorded extant |
| Silver GullChroicocephalus novaehollandiae (Stephens, 1826) | LaridaeChordata | Accepted speciesRecorded extant |
Names & synonyms
Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.
| Recorded name | Source status |
|---|---|
| Larus philadelphia (Ord, 1815) (Ord, 1815) | synonym |
| Sterna philadelphia Ord, 1815 Ord, 1815 | synonym |
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=824040 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:5YGG3. Classification follows source parent identifiers. English common names may vary by region.