Bought for our Green Cheek to kelp keep his little body busy while we're working. It took only a few hours for him to figure out how to get the nutriberries out. A few hours because he had to get used to it first, but in no time the foraging instinct took over and ..the nutriberries are history. Works as intended? Yes. For larger parrots, they will probably be able to destroy this thing in no time at all.
Rating: [5 of 5 Stars!]