Ruby-crowned Kinglet
Regulus calendula
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassAves (Aus)
- OrderPasseriformes
- FamilyRegulidae (Kinglets)
- GenusRegulus (Firecrests, Goldcrests, and Allies)
- SpeciesRegulus calendula (Ruby-crowned Kinglet)
The ruby-crowned kinglet (Corthylio calendula) is a very small passerine bird found throughout North America. It is a member of the kinglet family. The bird has olive-green plumage with two white wing bars and a white eye-ring. Males have a red crown patch, which is often concealed. The sexes are identical apart from the crown, and juveniles are similar in plumage to adult females. It is one of the smallest songbirds in North America. Wikipedia →
10–20% of wildlife watchers report a Ruby-crowned Kinglet sighting in Isle Royale National Park, based on 33 days of visitor records from GBIF citizen-science data.
Closest Relatives at Isle Royale National Park
Golden-crowned Kinglet
Regulus satrapa
Yellow-rumped Warbler
Setophaga coronata
Black-capped Chickadee
Poecile atricapillus
White-throated Sparrow
Zonotrichia albicollis
Blue Jay
Cyanocitta cristata
Common Raven
Corvus corax
American Redstart
Setophaga ruticilla
Red-breasted Nuthatch
Sitta canadensis
Nashville Warbler
Leiothlypis ruficapilla
Black-throated Green Warbler
Setophaga virens
Winter Wren
Troglodytes hiemalis
Red-eyed Vireo
Vireo olivaceus
📅 Monthly Probability
☀️ When They're Spotted
Most active during daytime hours (6am–6pm) · 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 Ruby-crowned Kinglet in Isle Royale National Park?
About 10% of wildlife watchers report a Ruby-crowned Kinglet sighting in Isle Royale National Park, based on 33 days of visitor records from GBIF citizen-science data.
When is the best time to see Ruby-crowned Kinglet in Isle Royale National Park?
September has the highest sighting rate for Ruby-crowned Kinglet in Isle Royale National Park in our monthly data.