Hades isn't talking (yet!) but he does have some neat whistles. You know when the sound da-da-d-nuh nuh nuuuuh- CHARGE! Hades will whistle that part but doesn't say charge. He will do the whistle part and then end with a wolf-call whistle. He also picks up little themes from TV and other tunes. Sometimes we are sitting around the house, Hades is on the perch and he just starts the chant and out of nowhere whistles a tune I've never heard but it's not random- it's definitely a tune.
Hades is still young- about 10 months- I am hoping he talks. Perseus is starting to try and make voice-like sounds but no talking yet. He too is only about 10 months old.