Did the members of the Byrds join other bands?

Yes, many members of the Byrds went on to join other bands after their time with the group. Notably, Roger McGuinn continued to perform and record as a solo artist and formed the group McGuinn, Clark & Hillman with former Byrds members. Chris Hillman joined the Flying Burrito Brothers and later collaborated with various artists, while Gene Clark had a solo career and worked with other musicians. Additionally, David Crosby became a founding member of Crosby, Stills & Nash.