when you say ,",healthy pigeons" probably not in my opinion ,,,,,,but i often wonder if it helps birds if theve had a hard time ,i,e been out for a while and run down, especialy yb,s... or ob,s feeding youngsters,, at least the thing is with johnsons iron tonic , what is not used will pass through,,, so wonder what forum thoughts on , on this one an iron tonic for humans is usualy for anem,,,anemi,,, anae ,,,bloodlessness ;D ;D ;D