Originally Posted by
53driver
I was thinking more along the lines as that "congress" is how one refers to a grouping of baboons....
From "YourDictionary.com"
"Traditionally, the specific collective noun for baboons is a congress of baboons; however, the non-unique collective nouns troop of baboons and tribe of baboons are also used; moreover, the recently-adopted specific collective noun flange of baboons sees increasing acceptance." (Probably as the baboons took exception to being referred to as a congress.)