4 ducks from TSC. Breed?

[Joev1973]

4 ducks, moved outside to temporary quarters while large pen w/pond being constructed. Im liking them. 2 are the same (dark) and 1 buff color and one white /yellowish. Wondering what that are? Also when and how do i tell the sex?

 

[Trimurtisan]

Welcome to duck life!

The white/yellow is likely aPekin and will turn solid white (like the Aflac duck).

The dark ones look like either Mallard or Rouen females.

The buff looks like it might be a Golden 300 hybrid.

There are a few ways to tell sex. First is if the males and females (mallard) look different. Next, and probably the earliest way to tell is by the quack they make. A female will have the traditional honk sound and be kind of loud. While a male (aka drake) has a much quieter sound and resembles a frog.

Then when full grown, the drakes will grow what's known as a drake feather. It's a distinctive tail feather that curls upward.

Hope that helps.