Nutriberries are loved by one grey, tolerated and incidentally munched by the other and the macaw won't touch them (yet).
They do not like the one with the strawhat-parrot (yellow? original?) but love the tropical.
I tried the peppery ones, but it made no difference and it is harder to get, so its mostly the purple and darkgreen here.
(Since they are colourcoded I ignore the names / sorry)
I just bought nutribird-pellets and while they love the coloured ones, they will *not* eat the beige variety (and I don't blame them: they seem to be drenched in fake-vanilla-scent that even makes me gag!).
(Zupreem, the beige pellets anyway, is terribly sweet, my CAV thought it was budget human breakfast cereal for kids at first ... and got quite worried since that was about all Sunny was fed, apart from peanuts, that I knew of)
Oh, do not introduce it to him/her, just try your hardest to keep it all for yourself and your bird will inmediately do its best to steal from you: if it is *so* special...it must taste really really good!
