Welcome Black Bass. Here is a link to Bruce's archive on Common pond fish primer (sunfish edition) which should help with id. Also look at the second link on various HBG pics.

http://www.pondboss.com/forums/ubbthreads.php?ubb=showflat&Number=92482#Post92482


HBG pic/question - http://www.pondboss.com/forums/ubbthreads.php?ubb=showflat&Main=1341&Number=14459#Post14459

Can you provide info on the size and numbers of BG/HBG - population status ( do you see lots of 2-3 inch BG ?). If you saw tons of BG yoy then then you have some regular BG in #s. In most HBG studies where LMB are present very , very few to 0 HBG offspring survive to 1 year. It is a combo of what CJ said wrt male % and #s and predation by LMB.