This is what they said it was. The wild duck, the pivert, the Pinson, Merle and Batty have femelles to plumage more dour than them. This is what I think it should be The wood duck, woodpecker, finch, blackbird and sparrow females have drab feathers on them. And I'm wrong!
Thanks, you are right, except for maybe a couple of the names; it could just be a regional thing. I would suggest: "The feathers of the female wild duck, green woodpecker, chaffinch, blackbird and sparrow are drabber than the male's." but your's is certainly a lot better than the original. If it's a translation, all you can do is suggest your own (if the sentence is still open) and downgrade the poorest of what's on offer.