I checked my National Geograhic bird book this morning, the western double crested comorant typically has white tuffs on it's head while the eastern double crested cormorant typically has darker tuffs on it's head. So Doohan, your unwelcome guest could be a comorant.

The migration is in full swing here as well, for the last several weeks we have had 150-200 ducks a day on the pond. (Way too much fertilizer IMO)There have been lots of lesser scaup, ringnecks, and widgeons. We have also had a few hooded mergansers, pintails, wood ducks, buffelheads, and even a few blue wing teal already.