Yellow-crowned Night-heron (Nyctanassa violacea) August 3, 2020 1482 × 1186 Yellow-crowned Night-heron (Nyctanassa violacea) Yellow-crowned Night-heron (Nyctanassa violacea) juvenile, August 2017, Oceanside. Breeder. August, 2017. Oceanside Nature Preserve, Long Island. Marshes. Breeder.