Quiller
Erethizon dorsatus
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassMammalia (Mamífers)
- OrderRodentia (Rosegadors)
- FamilyErethizontidae (New World Porcupines)
- GenusErethizon
- SpeciesErethizon dorsatus (Quiller)
Closest Relatives at Badlands National Park
Black-tailed Prairie Dog
Cynomys ludovicianus
Tamia mineur
Tamias minimus
Thirteen-lined Ground Squirrel
Ictidomys tridecemlineatus
Meadow Vole
Microtus pennsylvanicus
American Beaver
Castor canadensis
Fox Squirrel
Sciurus niger
Northern Grasshopper Mouse
Onychomys leucogaster
Plains Harvest Mouse
Reithrodontomys montanus
Deer Mouse
Peromyscus maniculatus
Bushy-tailed Wood Rat
Neotoma cinerea
Muskrat
Ondatra zibethicus
📅 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 Badlands National Park?
About 26% of visitor-days record a Quiller sighting in Badlands National Park, based on 22 observer-days of citizen-science data from GBIF.
When is the best time to see Quiller in Badlands National Park?
January has the highest sighting rate for Quiller in Badlands National Park in our monthly data.