>I've often thought that for a given brain/body ratio flying birds and
>bats should be dumber than mammals.
<cogent analysis snipped>
Possibly not. Take a look at the peculiar and startling findings in
Theodore Xenophon Barber's, THE HUMAN NATURE OF BIRDS (1993). Dr Barber is
a celebrated research psychologist. He seems to consider that some
bird-brains are on the verge of true speech.
Damien Broderick