Tom Cox @cox tom
Almost certainly the best thing I wa ever told about owls was when I met an owl handler and he told me that the wild owls in the sanctuary where he worked worried about the tame show owls there and sometimes stopped by to leave them shrews and mice as presents.
Bird brains are small in general. Therefore the high intelligence of some species was quite surprising. There’s some fresh research showing that bird neurons are way smaller than mammal neurons - so quite an impressive number of them can be fitted in a small brain. They have a small brain with a big computational power. My pet theory is that this characteristic could have been present already in the dinos, making them smart instead of dull.
Sounds like an adaptation to cut weight for flight, like how they have hollow bones too.