Return
Washington D.C. Area
| Date | Number of Species |
| June 19, 2007 | 30 species reported |
| June 15, 2007 | 26 species reported |
| May 01, 2007 | 33 species reported |
| April 24, 2007 | 26 species reported |
| April 24, 2007 | 25 species reported |
| April 17, 2007 | 37 species reported |
| April 10, 2007 | 25 species reported |
| April 03, 2007 | 36 species reported |
| March 27, 2007 | 28 species reported |
| March 20, 2007 | 44 species reported |
| March 13, 2007 | 22 species reported |
| March 06, 2007 | 26 species reported |
| February 27, 2007 | 38 species reported |
| February 20, 2007 | 40 species reported |
| February 13, 2007 | 27 species reported |
| February 06, 2007 | 28 species reported |
| January 30, 2007 | 28 species reported |
| January 23, 2007 | 25 species reported |
| January 16, 2007 | 24 species reported |
| January 09, 2007 | 25 species reported |
| January 02, 2007 | 27 species reported |
| December 26, 2006 | 19 species reported |
| December 19, 2006 | 28 species reported |
| December 12, 2006 | 27 species reported |
| December 05, 2006 | 21 species reported |
| November 28, 2006 | 25 species reported |
| October 17, 2006 | 19 species reported |
| October 10, 2006 | 22 species reported |
| October 03, 2006 | 20 species reported |
| September 26, 2006 | 27 species reported |
| September 19, 2006 | 21 species reported |
| September 12, 2006 | 24 species reported |
| September 05, 2006 | 40 species reported |
| August 29, 2006 | 25 species reported |
| August 22, 2006 | 22 species reported |
| August 15, 2006 | 21 species reported |
| August 08, 2006 | 16 species reported |
| August 01, 2006 | 28 species reported |
| July 25, 2006 | 16 species reported |
| July 18, 2006 | 13 species reported |
| July 11, 2006 | 18 species reported |
| July 04, 2006 | 16 species reported |
| June 27, 2006 | 26 species reported |
| June 20, 2006 | 21 species reported |
| June 13, 2006 | 17 species reported |
| June 06, 2006 | 26 species reported |
| May 30, 2006 | 26 species reported |
| May 23, 2006 | 26 species reported |
| May 16, 2006 | 46 species reported |
| May 09, 2006 | 41 species reported |
| May 02, 2006 | 42 species reported |
| April 25, 2006 | 36 species reported |
| April 18, 2006 | 51 species reported |
| April 11, 2006 | 55 species reported |
| April 04, 2006 | 29 species reported |
| March 28, 2006 | 33 species reported |
| March 21, 2006 | 28 species reported |
| March 14, 2006 | 29 species reported |
| March 07, 2006 | 36 species reported |
| February 28, 2006 | 28 species reported |
| February 21, 2006 | 30 species reported |
| February 14, 2006 | 28 species reported |
| February 07, 2006 | 21 species reported |
| January 31, 2006 | 30 species reported |
| January 24, 2006 | 34 species reported |
| January 17, 2006 | 34 species reported |
| January 10, 2006 | 42 species reported |
| January 03, 2006 | 42 species reported |
| December 27, 2005 | 33 species reported |
| December 20, 2005 | 46 species reported |
| December 13, 2005 | 28 species reported |
| December 06, 2005 | 25 species reported |
| November 29, 2005 | 35 species reported |
| November 22, 2005 | 31 species reported |
| November 15, 2005 | 48 species reported |
| November 08, 2005 | 43 species reported |
| November 01, 2005 | 33 species reported |
| October 25, 2005 | 40 species reported |
| October 18, 2005 | 39 species reported |
| October 11, 2005 | 15 species reported |
| October 04, 2005 | 35 species reported |
| September 27, 2005 | 49 species reported |
| September 20, 2005 | 43 species reported |
| September 13, 2005 | 27 species reported |
| September 06, 2005 | 29 species reported |
| August 30, 2005 | 40 species reported |
| August 23, 2005 | 26 species reported |
| August 16, 2005 | 25 species reported |
| August 09, 2005 | 15 species reported |