| Parent | Category | Figures | |
|---|---|---|---|
| 1 | Ixobrychus | exilis | 2132 |
| 2 | Ixobrychus | minutus | 326 |
| 3 | Ixobrychus | sinensis | 325 |
| 4 | Ixobrychus | cinnamomeus | 139 |
| 5 | Ixobrychus | flavicollis | 123 |
| 6 | Ixobrychus | involucris | 38 |
| 7 | Ixobrychus | dubius | 22 |
| 8 | Ixobrychus | sturmii | 17 |
| 9 | Ixobrychus | eurhythmus | 16 |