On Apr 19, 5:35 pm, "DK" <n...@NoSpam.com> wrote: snip Anyone actually figure out if it's cheaper to buy hearts rather than whole seeds? Or if not, anyone have a guess as to how much longer the same weight of hearts lasts in their birdfeeder compared to the same weight of whole seeds with shells? Or what percent of weight of the whole seed is the shell vs. the heart? snip