In Animorphs #18, The Decision, Ax is shocked when Visser Three morphs a six-winged kafit bird, a creature native to the Andalite home world. His shock stems from realizing the evil Visser must have visited the Andalite home world, an outrageous, offensive thing to have happen.
But... whywhy this conclusion? Wouldn’t Wouldn’t Visser Three’s host (Alloran?) have acquired a kafit bird as a matter of course in his upbringing?
I think I even remember it mentioned in some book that Andalites usually acquire a kafit, and/or one other native animal to the home world, to get practice in morphing. Am I misremembering that?
The answer may well be “KASU” (Katherine Applegate Screws Up), but I’d like to know if I’m misremembering something, and where/when that mention of common practice morphs was.
Also, any in-universe reasonable answer is welcome.