My GBH, Boris, mostly eats little stuff but sometimes spears a big bluegill. I think they will eat anything they can catch including snakes, mice, etc.
Boris and I have made peace. I look for him every morning and actually like watching him (or her) fish.
Cormorants are never welcome. I believe the trick is to scare away the scouts otherwise the whole clan moves in.
I find it odd that they are protected since they are listed as "least concern", the opposite of endangered. Apparently they are protected because all birds that migrate are protected under the Migratory Bird Treaty Act.
