Celebrato nei paesi (+1):
Russia.Ornithologist day negli altri anni
| Inizia | |
|---|---|
| Ornithologist day 1994 | |
| Ornithologist day 1995 | |
| Ornithologist day 1996 | |
| Ornithologist day 1997 | |
| Ornithologist day 1998 | |
| Ornithologist day 1999 |
Ornithologist day in altre lingue
| Russian | День орнитолога |