It's an owl. That was just laziness in my part. When writing the description down I somehow got eagle in my thick head instead of owl (which is what it was supposed to be) and I never bothered to fix it. I'll make a point of correcting that...not the first time someone called me out on it.
Not a spectacular example, but a bargain at auction. Here's Minerva and an owl: Anonymous--Domitian to Antoninus Pius Roman Æ quadrans, 14.9 mm, 2.51 g, 5 h Rome, A.D. 81-161 Obv: Helmeted and draped bust of Minerva right Rev: S-C, Owl standing left, head facing Ref: RIC 8.