Both the males and the females look the same. There is no way of telling them apart by just looking at them. You would have to have your bird either surgically sexed or have a DNA test done. The DNA test is a lot less painful for the birds, by the way.
There are some exotic birds that you can tell what sex they are by just looking at them. For example, the eclectus, the females are red and the males are green. But as far as the Nanday Conure, there are no visual cues that we humans can see without doing one of the two tests.
Edit summary - brief description of changes which you made
Your name, identifier, or desired attribution
Make the above into the current version
Or quit without saving and go to...Main FAQ page | Current version of this item | History of this item | Help