I would have never guessed, since I don't eat avocado pears. I do have a 30 ft tall avocado tree in my back yard. They are toxic to parrots.
Parrot Health, Toxins
a slicer of some sort? for apples or nuts? maybe a food processor part. little bits of grey inside the white lines give away that it has depth, and that the light is only showing the edge.