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.
Yes that’s correct brain size is not a useful measurement to detect intelligence between humans but between different species it’s a good estimate.
Owls do not have very big brains, and what they have is almost entirely given over to optical and audio processing. This is all very easily verified.