| Gould Scientific name | Cygnus ferus |
| Scientific name | Cygnus cygnus |
| Gould name (en) | Whistling Swan or Hooper |
| Name (en) | Whooper Swan |
| Book name (en) | The Birds of Europe |
| Book volume | Vol.5 |
| Identifier | 5-10 |
| Gould Scientific name | Cygnus ferus |
| Scientific name | Cygnus cygnus |
| Gould name (en) | Whistling Swan or Hooper |
| Name (en) | Whooper Swan |
| Book name (en) | The Birds of Europe |
| Book volume | Vol.5 |
| Identifier | 5-10 |