How would a drone even know another feral colony is in the area? Maybe they follow another drone home because they became bros at the DCA.
Also, I can't see how drifting drones offer genetic diversity if natal colonies are already close enough to mix at DCAs.
***********************************************
The BEE-L mailing list is powered by L-Soft's renowned
LISTSERV(R) list management software. For more information, go to:
http://www.lsoft.com/LISTSERV-powered.html