Douglas's Squirrel

Open encyclopedia reference

The Douglas squirrel (Tamiasciurus douglasii) is a pine squirrel found in western North America, from the Pacific Northwest (including the northwestern coastal states of the United States as well as the southwestern coast of British Columbia in Canada) to central California, with an isolated subspecies in northern Baja California, Mexico. It is sometimes known as the chickaree or pine squirrel, although these names are also used for the American red squirrel. Variant spellings of the common name are Douglas' squirrel and Douglas's squirrel. The Native Americans of Kings River called it the "Pillillooeet", in imitation of its characteristic alarm call.

Wikipedia contributors, Douglas squirrel; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T06:53:56.157034+00:00. This reference remains separate from the taxonomic record.

Identity & source status

Scientific name

Tamiasciurus douglasii (Bachman, 1839)

Name authority

(Bachman, 1839)

Common name

Douglas's Squirrel

Rank

species

Accepted status

accepted

Kingdom

Animalia

Phylum

Chordata

Class

Mammalia

Order

Rodentia

Family

Sciuridae

Genus

Tamiasciurus

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.

1. domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
2. kingdomAnimalia
3. phylumChordata
4. subphylumVertebrata
5. infraphylumGnathostomata
6. parvphylumOsteichthyes
7. megaclassTetrapoda
8. classMammalia Linnaeus, 1758
9. subclassTheria Parker & Haswell, 1897
10. infraclassEutheria Gill, 1872
11. orderRodentia Bowdich, 1821
12. suborderSciuromorpha Brandt, 1855
13. familySciuridae Fischer de Waldheim, 1817
14. subfamilySciurinae Fischer de Waldheim, 1817
15. tribeSciurini Fischer de Waldheim, 1817
16. genusTamiasciurus Trouessart, 1880
17. speciesTamiasciurus douglasii (Bachman, 1839)

Close classified relatives

These entries share the source’s genus, Tamiasciurus. They are not necessarily the closest relatives established by molecular evidence.

Browse 219 records assigned to Sciuridae.

Documented distribution

Source distribution statements, not a complete range map. A listed locality is not necessarily a place of origin.

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.

1. https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=180167 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:54MTJ. Classification follows source parent identifiers. English common names may vary by region.