When Klinger tried to escape the 4077th using a hang glider and wearing a robe, it was reported that he looked like THIS SPECIFIC COLOR AND TYPE OF ANIMAL WITH THESE SPECIFIC COLOR AND TYPE OF BODY PARTS (as described by both Hawkeye and Trapper). When he later crashed, the description was confirmed.
Big red bird with fuzzy pink feet [https://www.youtube.com/watch?v=J_JnUDHa0GA]