California mammals

Bryant's Woodrat in California

Neotoma bryanti

Native to California

Not listed as nonindigenous in California by USGS NAS; treated as native to its mapped California range.

IUCN Red List status

  1. LC
  2. NT
  3. VU
  4. EN
  5. CR
  6. EW
  7. EX

LC – Least Concern

Widespread and abundant; not at risk.

Neotoma bryantiBryant's Woodrat (Neotoma bryanti)Bryant's Woodrat (Neotoma bryanti)
Photo: Lázaro Israel Rangel Castañeda · CC BY 4.0Neotoma bryantiPhoto: Trevor Van Loon · CC BY 4.0Bryant's Woodrat (Neotoma bryanti)Photo: Isaac Krone · CC BY 4.0Bryant's Woodrat (Neotoma bryanti)

Bryant's Woodrat in California, by the numbers

Common in California 71st most recorded of 241 mammals logged in California

1,669 occurrence records
149 with iNaturalist photos

Records from 2000–2026.

1,669 total records count every California occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 300; the monthly chart covers the 1,667 records with a full observation date.

When to look for the Bryant's Woodrat in California

Most sightings fall in March to July.

1,667 California occurrence records (iNaturalist and GBIF) by month of year, 2000–2026. Shows when the species is recorded, not a guarantee of presence.

Monthly California records (table)
MonthRecords
January91
February58
March178
April127
May209
June182
July194
August104
September109
October151
November112
December152

Monthly bryant's woodrat occurrence records (iNaturalist and GBIF) in California, 2000–2026.

Seasonality

Year-round in California, with recorded sightings peaking in March–July, with a smaller rise in October and December.

Occurrence map

Where Bryant's Woodrat has been recorded in California

300 records mapped · zoom and drag to explore

300 California records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Santa Rosa And San Jacinto National Monument 46
Carrizo Plain National Monument 31
Cleveland National Forest 12
Los Padres National Forest 10
Cabrillo National Monument 8
Unnamed site - Coachella Valley Mountains Conservancy 4
Desolation Wilderness 4
San Bernardino National Forest 3

Protected places with the most bryant's woodrat sightings, from the USGS Protected Areas Database plus named mountain ranges, good spots to look, not a full breakdown, so they don't sum to the total.

Where it's recorded in California

CountyRecords
Riverside County 418
San Diego County 386
Kern County 324
San Bernardino County 139
Orange County 64
Santa Barbara County 50
San Luis Obispo County 43
Los Angeles County 40
San Benito County 39
Alameda County 39
Monterey County 37
Ventura County 36
7 other counties 54

The complete county distribution, spread across 19 California counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Bryant’s Woodrat records in California fit moist forest, brush, and meadow along the Pacific side of the state.

Reports center on the redwood belt and Coast Ranges, with some records extending into the Sierra Nevada. They show where people have documented the species, and they don’t rank California’s best habitat.

Reports rise most clearly in Mar, May. That pattern can reflect animal movements, weather, and observer effort, so it isn’t a population count.

Occurrence data from iNaturalist and GBIF.

Neotoma bryanti
Full species profile Bryant's Woodrat Neotoma bryanti Size 17.8 cm7 in Weight 119 g4.2 oz Lifespan Up to 10.5 yr View the full profile

More mammals in California in the atlas

Data & sources

The data and visualizations on this page draw on these open sources:

  • GBIFCC-BY 4.0occurrence records behind the range map, elevation, and record counts
  • iNaturalistCC0 / CC-BY / CC-BY-SAobservations, photos, and audio recordings
  • IUCN Red Listattributed factthe global conservation status
  • USGS NASpublic domainnative / introduced status
  • Natural Earthpublic domainthe relief basemap
  • USFSpublic domainnational-forest boundaries
  • USGS Protected Areas Databasepublic domainthe named parks, forests, and refuges behind "notable places to look"