GP's whole thesis was that bird intelligence is related to their high-in-the-sky perspective and prey tracking, which is wrong. If this was the case then the sm

GP's whole thesis was that bird intelligence is related to their high-in-the-sky perspective and prey tracking, which is wrong. If this was the case then the smartest birds would be raptors. The need for intelligence comes from being a generalist, needing to learn and apply a large complex set of situation dependent rules. This is why specialists like raptors, chickens, penguins are not renowned for their intelligence. A good outward sign of intelligence is playfulness, a trait evolved to put the player in learning situations to feed their intelligence. Animals like apes, dolphins and crows are all very playful. Eagles not so much. So, yeah, I was correcting GP. If you don't like it, then too bad.