Are my welsh Harlequin ducks purebreds?

[MisfitSpartan]

One of my girls was nearly solid white/cream for her first year until she had her spring molt. Now she's got normal coloring. Males' heads don't start super dark, but become dark as they age (1st, 2nd, & 3rd molt). His head reminds me of my WH drake before he fully matured.
Give them until next summer and see how they change. They may indeed be mixed breeds, but they could also just not have developed their mature coloring yet

 

[nuthatched]

One of my girls was nearly solid white/cream for her first year until she had her spring molt. Now she's got normal coloring. Males' heads don't start super dark, but become dark as they age (1st, 2nd, & 3rd molt). His head reminds me of my WH drake before he fully matured.
Give them until next summer and see how they change. They may indeed be mixed breeds, but they could also just not have developed their mature coloring yet

This thread is from 2016 but it's good to know that.