Need help telling the sex of my Muscovies *Update, New Pics*

Okay, they are now approximatly 5 and 7 weeks old. Sadly, I'm really thinking I only have one or two females. These are some of their new pics:

1.) The guy thought this one was lavender, now I'm not so sure. What do you think?




2.) This one he thought was Chocolate, but I don't think so. You?




I'll have to go back out and try to get some pics of the three black and white ones. One of them I'm 100% sure is a girl.

There isn't a dominant one at all. They are very outgoing though! LOL. They follow anyone around in the yard, and will run up to you every time you go outside. They want to be around us constantly, which is a little strange since they weren't really handled all that much as ducklings.

Okay, new pics. Are there any factors that give them away? I'm finding this so hard, because I've never had scovies and with all my other breeds I could tell very quickly and there were obvious signs! LOL. I have some opinions based on the legs, but to tell you the truth some have really thick legs, and some have thick legs, but not as thick, so do muscovies just have thicker legs in general?

That's what I was afraid of. How aggressive are muscovy drakes exactly?

Here is what I have right now:

1 Magpie Drake
2 Blue Swed X Rouen
1 Blue Swed X Mallard


The 2 rouen mixes are setting on 8 eggs, 6 of which are progressing nicely.

I'm definitly sure one of my muscovies is a girl, and I'll keep her.

So, I expect to have around 7-8 ducks this fall/winter. I REALLY want to keep the one in the second picture, and there is one other that is very friendly I want to keep. Will that mix be okay until next spring/summer? I know you shouldn't have less than 4 ducks per drake, but it will probably be then before I can get more ducks.