Muscovy duckling colors?

[ashtree]

Hi I'm wondering if anyone has any guesses as to the colors of these 3 muscovy ducklings? I know the moms were blue and chocolate and the sellers described the male as "grey" but I think he was a blue (I couldn't tell from distance exactly what color he was).
Anyway we love these little cuties!

Thanks!

 

[ashtree]

I'm really hoping 1 of them is a chocolate. If not what should I look for when buying from the next hatch? I love chocolates and am already planning to buy a couple more ducklings next week.