He's beautiful! By crossing him with your black Aussies, you'll get a 100% hatch of blue chicks (black x splash= all blue). Over the Anconas, you'll also get all blue. If you breed one of those blues back to the Anconas you should get blue and black mottleds (the original cross will carry a copy of the mottled gene).
You're going to have a ton of fun with him!
You're going to have a ton of fun with him!