I recently bought nyger seeds, which are being ignored by every bird that comes into my garden. I googled it, and found that of they dry out, the finches etc that should love them won't go near them. But this is a new bag, bought from a supermarket. Mouldy nyger seeds are poisonous, but they were not mouldy.
I also read that nyger seeds are heat treated so that they won't sprout. However, the ground underneath my bird feeder was covered with them where the sparrows had thrown them out: and they sprouted everywhere.
Has anyone else had this experience? What should I do about the seeds? Complain to the manufacturer? To the supermarket? What should I do about the unused seeds?
Similar here, I gave my nyger seed to my neighbour as it wasn't being eaten (bizarrely it's barely 20 feet away in his bit of the shared garden and has a semi permanent queue of goldfinches) and use only sunflower hearts in a "sunflower heart feeder", which attracts everything... even the robins, and one rook has learnt to feed from it!
I agree with the previous comments and gave up feeding nyger seed a few years ago; as a test I tried buying a good quality finch mix (with red millet, canary seed, nyger, etc..) a few weeks ago and the birds just turned their beaks up at it including the bullfinches. Sunflower hearts are popular with most birds but I would ensure you get good quality ones. THIS supplier is one of the best I have used and are very reliable offering free delivery with one hour slot. I agree with Tony that it is better just to bin the unused seeds, I had to do the same with the new finch mix I bought.