well, they have names alright [img]http://www.**********.com/iB_html/non-cgi/emoticons/new/smile.gif[/img]
I know that my birds know who chubby (my guineapig) is. one day my mom was talking to them and happened to mention chubby, who was below their cage (she wasn't looking at him or giving any other clues) and they immediately looked down to where chubby was.
They obviously know other words too... like treats, and other things.
the last sentence is pretty funny. lol You can only imagine what they were telling each other :P