Black duck/mallard crosses

[Dr Tonia Cochran <>]

Here's another question (full of them today, aren't I?). Can anyone out
there tell me whether the F1 offspring of Black Duck x Mallards are
fertile? I seem to remember that they are (and that was an added concern
for the native duck populations, apart from the mallards pinching black
duck partners when they should be breeding with other black ducks), but
can't find reference to it now.

 By the way, what other species of native duck do mallards breed with?

Thanks and all the best, Tonia.
Dr Tonia Cochran
Inala
Cloudy Bay Road
Bruny Island, Tasmania 7150
Tel/Fax: 03 62931217 mobile: 0416 124 934 (message bank)