 |
| |||
| laulujoutsen | |||
| joutsen | |||
| Cygnus cygnus: 11 phrases in 6 subjects |
| Environment | 3 |
| Fish farming pisciculture | 1 |
| Life sciences | 1 |
| Natural resourses and wildlife conservation | 2 |
| Natural sciences | 1 |
| Ornithology | 3 |
|
| |||
| laulujoutsen | |||
| joutsen | |||
| Cygnus cygnus: 11 phrases in 6 subjects |
| Environment | 3 |
| Fish farming pisciculture | 1 |
| Life sciences | 1 |
| Natural resourses and wildlife conservation | 2 |
| Natural sciences | 1 |
| Ornithology | 3 |