Quote Originally Posted by TwisT View Post
Why would he need to catch the bird? He can just revive him. Nagato's eyes where taken by Madara and Sasuke has Itachi's eyes right now. Still they both got revived with both their eyes intact. So if Kabuto want to revive Shishui he can just do so. If anyone want that eye it would be Madara who seem to be the eye collector.
Because reviving them requires their DNA, not their eyes. If he already had Shishui's DNA, he probably would have revived him. If he gets the eye, he will have his DNA.