Quiller
Erethizon dorsatus
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassMammalia (Mamífers)
- OrderRodentia (Rosegadors)
- FamilyErethizontidae (New World Porcupines)
- GenusErethizon
- SpeciesErethizon dorsatus (Quiller)
Closest Relatives at Elk Island National Park
American Beaver
Castor canadensis
American Red Squirrel
Tamiasciurus hudsonicus
Muskrat
Ondatra zibethicus
Gapperrotelmaus
Myodes gapperi
Meadow Vole
Microtus pennsylvanicus
Deer Mouse
Peromyscus maniculatus
Northern Pocket Gopher
Thomomys talpoides
Richardson's Ground Squirrel
Urocitellus richardsonii
📅 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 Elk Island National Park?
About 30% of visitor-days record a Quiller sighting in Elk Island National Park, based on 23 observer-days of citizen-science data from GBIF.
When is the best time to see Quiller in Elk Island National Park?
December has the highest sighting rate for Quiller in Elk Island National Park in our monthly data.