Quiller
Erethizon dorsatus
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassMammalia (Mamífers)
- OrderRodentia (Rosegadors)
- FamilyErethizontidae (New World Porcupines)
- GenusErethizon
- SpeciesErethizon dorsatus (Quiller)
Closest Relatives at Zion National Park
Rock Squirrel
Otospermophilus variegatus
Uinta Chipmunk
Tamias umbrinus
White-tailed Antelope Squirrel
Ammospermophilus leucurus
Utah Prairie Dog
Cynomys parvidens
Golden-mantled Ground Squirrel
Callospermophilus lateralis
Cliff Chipmunk
Tamias dorsalis
American Beaver
Castor canadensis
Desert Woodrat
Neotoma lepida
Tamia mineur
Tamias minimus
Yellow-bellied Marmot
Marmota flaviventris
📅 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 Zion National Park?
About 9% of visitor-days record a Quiller sighting in Zion National Park, based on 7 observer-days of citizen-science data from GBIF.
When is the best time to see Quiller in Zion National Park?
January has the highest sighting rate for Quiller in Zion National Park in our monthly data.