Data Zone
| Scientific name | Common name | Family | Red List category |
|---|---|---|---|
| Ocyceros gingalensis | Sri Lanka Grey Hornbill | Bucerotidae (Hornbills) | LC |
| Ocyceros birostris | Indian Grey Hornbill | Bucerotidae (Hornbills) | LC |
| Ocyceros griseus | Malabar Grey Hornbill | Bucerotidae (Hornbills) | VU |