Celebrato nei paesi (+1):
Russia.Ornithologist day negli altri anni
| Inizia | |
|---|---|
| Ornithologist day 2016 | |
| Ornithologist day 2017 | |
| Ornithologist day 2018 | |
| Ornithologist day 2019 | |
| Ornithologist day 2020 | |
| Ornithologist day 2021 |
Ornithologist day in altre lingue
| Russian | День орнитолога |