"Is it really a Cockatoo?"

[kai]

Hello Ron,

i'm with you that the term "carabao" was most likely been transliterated to caribou

Nowadays we'd blame autocorrection...

I believe this to be a mere printing error, i. e. a glitch/lapsus introduced during type-setting. Usually proof reading was done by competent specialists; however, this type of mistake is difficult to catch. And a mere catalog might have got less attention (and less funds allocated, too).

Regards,
Kai