I can't say I'm real surprised it got it down, but I am surprised how lame that bass is. Why is it not fighting? Did the cormorant spear it or ram it or what? It looks like it's worn out.
I'd like to think this is the exception, not the rule, to their diet. I've always assumed they feed mainly on schools of shad. I've seen them working in a group, herding shad. Gizzard shad get as big as that bass, and bigger.