Nebraska mammals

Silky Pocket Mouse in Nebraska

Perognathus flavus

Native to Nebraska S1 Critically Imperiled in Nebraska

Not listed as nonindigenous in Nebraska by USGS NAS; native to its Nebraska range.

IUCN Red List status

LC – Least Concern

Widespread and abundant; not at risk.

Photo: Juan Cruzado Cortés · CC BY 4.0Silky pocket mouse crouched on sandy grassland groundPhoto: Juan Cruzado Cortés · CC BY 4.0Silky pocket mouse standing in dry grassPhoto: Juan Cruzado Cortés · CC BY 4.0Silky pocket mouse side view on open sandy soilPhoto: Wendy McCrady · CC BY 4.0Silky pocket mouse moving through wet pine litter at night

Photo: Juan Cruzado Cortés · CC BY 4.0Silky pocket mouse crouched on sandy grassland groundPhoto: Juan Cruzado Cortés · CC BY 4.0Silky pocket mouse standing in dry grassPhoto: Juan Cruzado Cortés · CC BY 4.0Silky pocket mouse side view on open sandy soilPhoto: Wendy McCrady · CC BY 4.0Silky pocket mouse moving through wet pine litter at night

Silky Pocket Mouse in Nebraska, by the numbers

Occasional in Nebraska 43rd most recorded of 95 mammals logged in Nebraska

35 occurrence records

Records from 2000–2026.

When to look for the Silky Pocket Mouse in Nebraska

Most sightings fall in June.

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

Monthly Nebraska records (table)

Month	Records
January	0
February	0
March	0
April	0
May	1
June	18
July	5
August	8
September	0
October	2
November	1
December	0

Monthly silky pocket mouse occurrence records (iNaturalist and GBIF) in Nebraska, 2000–2026.

Seasonality

Year-round in Nebraska, with recorded sightings peaking in June.

Occurrence map

Where Silky Pocket Mouse has been recorded in Nebraska

35 records mapped · zoom and drag to explore

35 Nebraska records mapped

Where it's recorded in Nebraska

County	Records
Cherry County	13
Scotts Bluff County	8
Hooker County	5
Garden County	3
Morrill County	3
Thomas County	1
Box Butte County	1
Sheridan County	1

The complete county distribution, spread across 8 Nebraska counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Nebraska’s 35 silky pocket mouse records all come from GBIF; June contributes 18, August eight, and July five. The overlay highlights Nebraska National Forest, the Platte River, and Niobrara National Scenic River, and NatureServe ranks the species S1 (Critically Imperiled) in the state. The small record set is evidence of documented encounters rather than abundance, and it cannot by itself define where the mouse is absent.

Full species profile Silky Pocket Mouse Perognathus flavus Size 9.5–11.8 cm3.7–4.6 in Weight 6–9 g0.2–0.3 oz Lifespan Up to 5 yr View the full profile

More mammals in Nebraska 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
NatureServe ExplorerCC-BYthe state conservation rank
IUCN Red Listattributed factthe global conservation status
USGS NASpublic domainnative / introduced status
Natural Earthpublic domainthe relief basemap
USFSpublic domainnational-forest boundaries