Celebrato nei paesi (+1):
Russia.Ornithologist day negli altri anni
| Inizia | |
|---|---|
| Ornithologist day 2006 | |
| Ornithologist day 2007 | |
| Ornithologist day 2008 | |
| Ornithologist day 2009 | |
| Ornithologist day 2010 | |
| Ornithologist day 2011 |
Ornithologist day in altre lingue
| Russian | День орнитолога |