hi all ive found the best stuff for keeping a team of birds in good health is ionic colloidal silver,but not just any old stuff put together it has to be made properly,not with tap water,but with 100% de-ionized water,and also not with silver wires,but with proper silver bullion bars of 1 troy oz each.
if its made ok your team will florish,old birds keep going on it,but young birds they love it they seem to know it
they don't get many problems and the one's that do,put some into their mouth a few times a day and their fine.
some of the ailments it kills,salmonella,e-coli,y.b.sickness,adenovirus,ect.
and its natural no chemicals,bugs can't build up a resistance to it,so you can give it always.
hope this helps all.
willo.