Later when they are bigger you will recognize the LOUD! "KEY KEY KEY KEY KEY!!!!" sound as one of the "Run For Your Life" sounds.
Usually means...
" I see a Giant guinea eating wolf" or a snake, they hate snakes!
That's a great translation of Guinea to English!
Is your guinea to young to do the "BUCK-WHEET" or "POT-RACK" repetition?
Mine seem to do that when one gets separated from the others or "the one it loves most". It's kind of like a locator call like "I'm over here...where are You?"