Celebrato nei paesi (+1):
Russia.Ornithologist day negli altri anni
| Inizia | |
|---|---|
| Ornithologist day 1997 | |
| Ornithologist day 1998 | |
| Ornithologist day 1999 | |
| Ornithologist day 2000 | |
| Ornithologist day 2001 | |
| Ornithologist day 2002 |
Ornithologist day in altre lingue
| Russian | День орнитолога |