| Years in birding and ornithology: | 2001 2002 2003 2004 2005 2006 2007 |
| Centuries: | 20th century · 21st century · 22nd century |
| Decades: | 1970s 1980s 1990s 2000s 2010s 2020s 2030s |
| Years: | 2001 2002 2003 2004 2005 2006 2007 |
The year 2004 in birding and ornithology.