East Bay Birders Circle was an on-line discussion group dealing with birding in Contra Costa and Alameda Counties in the San Francisco Bay area through July 2004. On August 1, 2004 the EBB Web site was merged with the MDAS Sightings e-mail group. In April 2010, this list was moved to Yahoo Groups, and then in 2019 it migrated to Groups.io. Archives of messages posted before April 2010 can be viewed below.

EBB List Archive: June 1998-July 2004

1998 Jun Jul Aug Sep Oct Nov Dec
1999 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2000 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2001 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2002 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2003 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2004 Jan Feb Mar Apr May Jun Jul

EBB/MDAS List Archive: August 2004-March 2010

2004 Aug Sep Oct Nov Dec
2005 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2006 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2007 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2008 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2009 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2010 Jan Feb Mar