I may be misremembering or combining different stories, but when I saw Dave Goelz give a talk a few years back he was commenting that there was not a specific Camilla puppet. They would grab any chicken and use it. Jerry Nelson always tried to use one with blue eye lids but it was not always available, so random chickens filled in. So Dave said jokingly all chickens look like Camilla to Gonzo. So I don't think it's a character trait or short coming just a joke about a behind the scenes issue with which of these dozen chickens did we use as Camilla in the last scene?