We have two ancona ducks who are 3 months old. I believe they are girls because their voices sound quacky to me. I am planning to buy a 4 month old confirmed male (curly tail and all) but my husband is not confident in my abilities and is worried we'll end up with two boys. So I have prepared a little video of them chasing the cat which is always a very vocal adventure. (Don't worry, I think the cat likes it) They are being cheered on by a 2 year old so it's kind of hard to hear them at first but toward the end you can hear them well. It took about 30 takes over the course of 3 days to get one this good.
http://youtu.be/Hbw1FxvNZr0
http://youtu.be/Hbw1FxvNZr0