Based on 27,830 research-grade iNaturalist observations in Texas, Yellow-crowned Night Heron is most often recorded in April; in Texas it behaves like a summer visitor / breeder. It ranks #13 among birds recorded in the state in our data.
Nyctanassa violacea
Yellow-crowned Night Heron in Texas by month
Bars show research-grade observations per month. They mix true seasonality with how often people are outdoors, so treat small numbers with caution.
Also seen in Texas in April

Northern Cardinal

Great-tailed Grackle

Northern Mockingbird
White-winged Dove

Mallard

Mourning Dove

Great Egret

Scissor-tailed Flycatcher
Places to look in Texas
Dinosaur Valley State Park
San Antonio Botanical Garden
Garner State Park
State ParkBrazos Bend State Park
Pedernales Falls State Park
Enchanted Rock State Natural Area
FAQ
When does Yellow-crowned Night Heron appear in Texas?
Mainly April–September, with the most records in April.
How common is Yellow-crowned Night Heron in Texas?
It ranks #13 by number of iNaturalist observations among birds in Texas (27,830 records in our sample).