What Gender are my ducks???

[shelbee12]

I have 4 Muscovy ducks and 1 that I think is a Pekin. Can anyone tell me the gender of these ducks or how I can try to tell? (sorry the goats and chickens were jealous that the ducks were getting all the attention. My guess from what I read is there is the one male in the front right and the other three seem smaller so ducks? Is there a better way to take pictures to help you figure it out? I have no idea how to tell for the Pekin though. I know there is a difference in quacks, but I've never heard the other gender so its hard to decide
Thanks!

 

[learycow]

The larger muscovy are males and smaller are females. Hard to tell due to the angle of your pics, but looks like 2 males and 2 females?

Does your pekin have a curly tail feather?
Is it loud when it quacks or more quiet and raspy?

 

[shelbee12]

I'll try to have my hubby get better pics. they don't like to hold still lol Also, is it ok for siblings to reproduce?

 

[MsPoultry]

It looks like 2 boys 2 females.The girls are smaller,pip,and have no crest.The boys are much larger,hiss,and have a crest they can lift up and down.The white one looks just like a pekin and will get a curly feather by it's tail if it's a boy.OH and don't breed siblings that's insest.