Quiller
Erethizon dorsatus
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassMammalia (Mamífers)
- OrderRodentia (Rosegadors)
- FamilyErethizontidae (New World Porcupines)
- GenusErethizon
- SpeciesErethizon dorsatus (Quiller)
Closest Relatives at Riding Mountain National Park
American Beaver
Castor canadensis
American Red Squirrel
Tamiasciurus hudsonicus
Muskrat
Ondatra zibethicus
Franklin's Ground Squirrel
Poliocitellus franklinii
Woodchuck
Marmota monax
Thirteen-lined Ground Squirrel
Ictidomys tridecemlineatus
Eastern Chipmunk
Tamias striatus
Gapperrotelmaus
Myodes gapperi
Tamia mineur
Tamias minimus
Meadow Vole
Microtus pennsylvanicus
Richardson's Ground Squirrel
Urocitellus richardsonii
Deer Mouse
Peromyscus maniculatus
📅 Monthly Probability
☀️🌙 When They're Spotted
Active throughout day and night · across all parks (global)
Global Distribution
Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.
where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is) · parks where it occurs — tap a pin for the sighting probability there
Parks Where Found
Quick answers
What are the chances of seeing a Quiller in Riding Mountain National Park?
About 7% of visitor-days record a Quiller sighting in Riding Mountain National Park, based on 5 observer-days of citizen-science data from GBIF.
When is the best time to see Quiller in Riding Mountain National Park?
February has the highest sighting rate for Quiller in Riding Mountain National Park in our monthly data.