Amadeus

I found that niger seed was ignored (had a couple of goldfinches that went for it initially but then they stopped). Meal worms go well, the slabs of nutritious fat and fat balls went well throughout winter but are now largely ignored. Sun flower seeds (not hearts) are still going well.

So I think the moral is to try lots of things and see what is taken up. But I think you need to persevere because the birds won't know it's there initially. And they're not called bird brained for nothing.