Yellow-crowned Night-Heron
Nyctanassa violacea
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassAves (Aus)
- OrderPelecaniformes (Pelicaniformes)
- FamilyArdeidae (Herons, Egrets, and Bitterns)
- GenusNyctanassa (Yellow-crowned and Bermuda Night Herons)
- SpeciesNyctanassa violacea (Yellow-crowned Night-Heron)
The yellow-crowned night heron (Nyctanassa violacea) is one of two species of night heron in the genus Nyctanassa. Unlike the black-crowned night heron, which has a worldwide distribution, the yellow-crowned is restricted to the Americas. It is known as the bihoreau violacé in French and the pedrete corona clara or yaboa común in some Spanish-speaking countries. Wikipedia →
20–30% of wildlife watchers report a Yellow-crowned Night-Heron sighting in Ostional Wildlife Refuge, based on 146 days of visitor records from GBIF citizen-science data.
Closest Relatives at Ostional Wildlife Refuge
Snowy Egret
Egretta thula
Little Blue Heron
Egretta caerulea
Great Egret
Ardea alba
Tricolored Heron
Egretta tricolor
Green Heron
Butorides virescens
Great Blue Heron
Ardea herodias
Cattle Egret
Bubulcus ibis
Bare-throated Tiger Heron
Tigrisoma mexicanum
Reddish Egret
Egretta rufescens
Boat-billed Heron
Cochlearius cochlearius
Black-crowned Night Heron
Nycticorax nycticorax
Brown Pelican
Pelecanus occidentalis
📅 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 Yellow-crowned Night-Heron in Ostional Wildlife Refuge?
About 27% of wildlife watchers report a Yellow-crowned Night-Heron sighting in Ostional Wildlife Refuge, based on 146 days of visitor records from GBIF citizen-science data.
When is the best time to see Yellow-crowned Night-Heron in Ostional Wildlife Refuge?
September has the highest sighting rate for Yellow-crowned Night-Heron in Ostional Wildlife Refuge in our monthly data.