Black-crowned Night Heron
| Recorded | 2012-05-20 |
| Location | Donaudelta, RO |
| Copyright | Beat Rüegger |
| Recorded | 2011-05-17 |
| Location | Donaudelta, RO |
| Copyright | Beat Rüegger |
| Recorded | 2018-05-29 |
| Location | Donaudelta, RO |
| Copyright | Beat Rüegger |
| Family | Herons |
| References | en.wikipedia.org |
625 | 773