Welsh Harlequin drakes - bill color

[Mandarin]

I've recently purchased 2 Welsh Harlequin drakes, 2 brothers. They are very happy and fun to watch. I'm managing to tell them apart by their different bill colors - one has a blue bill and the other is green. After looking at pictures of other WH drakes, they all seem to have orange bills. Has anyone eelse got WH's with similar colorings?

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[Learningstill]

I've recently purchased 2 Welsh Harlequin drakes, 2 brothers. They are very happy and fun to watch. I'm managing to tell them apart by their different bill colors - one has a blue bill and the other is green. After looking at pictures of other WH drakes, they all seem to have orange bills. Has anyone eelse got WH's with similar colorings?

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I just read the standard and the green bill is the most desirable, but the drakes bill ranges from green to yellowish-green. In sexually matured drakes the bean and nostrils are black. It did not say anything about blue.... Not sure if that is acceptable or not?

 

[Mandarin]

Thanks a lot, that does help. I've got a desirable duck! Will keep looking for info on blue bills. Its hard to see in the photo but its very distinctively blue! Will try to get a closer photo tomorrow (they're sleeping now, its bed time in the UK!)