What breed is my duckling and how do I tell if they are male or female?! I’m lost please help!

[CarriePatrick]

 

[Skyle]

I'm probably wrong bit they may be a swedish and a pekin.
For the sexing you'll have to wait until they change their voices (6-8 weeks old). Females will quack, males will have a raspy voice. You can also sex them when they jave their adult feathering (8-12 weeks old), if they have a curl on the tail, then they're males.