Return
Chicago, IL
| Date | Number of Species |
| June 13, 2007 | 32 species reported |
| April 18, 2007 | 17 species reported |
| March 28, 2007 | 52 species reported |
| March 07, 2007 | 16 species reported |
| February 28, 2007 | 14 species reported |
| January 30, 2007 | 30 species reported |
| January 03, 2007 | 24 species reported |
| December 15, 2006 | 10 species reported |
| December 05, 2006 | 13 species reported |
| October 10, 2006 | 13 species reported |
| September 24, 2006 | 5 species reported |
| September 20, 2006 | 18 species reported |
| August 30, 2006 | 11 species reported |
| August 09, 2006 | 31 species reported |
| July 12, 2006 | 28 species reported |
| June 14, 2006 | 27 species reported |
| May 22, 2006 | 16 species reported |
| May 03, 2006 | 27 species reported |
| April 18, 2006 | 39 species reported |
| March 14, 2006 | 39 species reported |
| February 22, 2006 | 16 species reported |
| February 18, 2006 | 20 species reported |
| January 25, 2006 | 14 species reported |
| January 08, 2006 | 11 species reported |
| December 22, 2005 | 20 species reported |
| November 22, 2005 | 16 species reported |
| November 09, 2005 | 22 species reported |
| November 02, 2005 | 23 species reported |
| October 16, 2005 | 19 species reported |
| September 30, 2005 | 10 species reported |
| August 30, 2005 | 16 species reported |
| August 15, 2005 | 25 species reported |