Do teenage ducks go cheep or quack?

Here's a thought for you: When do ducklings or chicks lose their 'cheep cheep' noise and gain either their adult quack/bwok noise? Are they like human teenagers and one day their voices just crack?

Not much else to report apart from spotting this new animated film coming soon. Renaissance is a French film using the same technology for video-game graphics and looks the dog's. There's influences of Sin City, Blade Runner, Akira and Ghost in the Machine so its got my vote already. Haven't been able to find an English version of the film site but the visuals give you an idea of the style.

Here's the French website.