I'm not sure exactly why most of this issue happens, but it sure is cool.
In the wake of Grayson, Batwoman is the new Bat-related international adventures book.
Monday, February 10, 2014
Is Nightwing a "Bird" Related Name?
Another panel from Batman #28. Bird high, Bat low... Hmm. I guess you could refer to Nightwing as a bird-ish name, but I don't know. If anything, while I may have been mostly convinced this is Harper Row, I've never been sold on the idea of her taking the name of Nightwing.
All that said, Her hair is definitely different than Harper's. Definitely longer than we have seen in the preview panels of Harper as a civilian. And all purple, no blue... Definitely a reason to doubt.
(Source: LA Times Hero Complex)