Harrisons was one of the few pellets that my bird regularly ate around and left in the bowl so I stopped buying them which was nice for me given they were so darn expensive in comparison to all the other available pellets lol. He loved Roudybush pellets when I could get them but as it is not available here anymore I mainly just feed Vetafarm now and my guys are happy to eat it, one of my birds is approx 15-16years old and as far as I could gather had not ever eaten pellets but somehow survived on green peas and sunflower seeds- I placed a few pellets in his seed dish every day for a long time and just very very slowly increased the amount I added and I eventually discovered him searching through the seed looking for them so I offered a bowl with only pellets and he pigged out, I honestly think once he did try them he felt how much more energy they offered or something because he eats them rather happily now. I did serve a lot of pellets that got wasted over the year or so it took for him to finally decide to try them out of the seed mix but in my mind it was worth the loss and expense (the wild birds also loved it!) considering he literally only ate three things when I got him and did not recognise anything else I offered as food- he now eats a few different foods which is wonderful.