Niger or sesame?

[HoangQuan]

I used to use sesame(both black and yellow type) in my seed mix for finch, as I see, they do eat it, but not much. But I can't cut sesame from the mix, cuz they contain oil and large amount of calories, and good not for birds but for human, too.
Anyway, I've just discovered a shop near my house selling niger seed, I bought some, and put in a seperate dish, and surprisingly, all of my birds go for it!!
I did some research about Niger seed and I think, well, if the bird love it that much, and it has pretty much same ingredients and usage as sesame, maybe I can replace sesame by it.
I want to know, if any of us here did use both of them? I heard that niger can be used to make the bird singing more , since it contains lots of oil, willl it be useful for young and molting birds?

[B CAMP]

I think its fattening if they eat to much, mine don't eat much at all

[franny]

my goldbreast likes the niger soaked. But she doesn't seem too interested in it otherwise.

[Pukasand]

My Euro Goldfinches loveee the Niger. All the other birds pick at it, they seem to like it sprouted better. I always put a small amount of sesame seed in their eggfood (Green Day). .. they all gobble it up.