Celebrato nei paesi (+1):
Russia.Ornithologist day negli altri anni
| Inizia | |
|---|---|
| Ornithologist day 2099 | |
| Ornithologist day 2100 | |
| Ornithologist day 2101 | |
| Ornithologist day 2102 | |
| Ornithologist day 2103 | |
| Ornithologist day 2104 |
Ornithologist day in altre lingue
| Russian | День орнитолога |