Double-crested Cormorant

Large water bird with black wings and lower body. Neck and head was darker brown. I had a tough time with the ID. One major factor for my determination was the habitat where I found him and the details from my Sibley field guide. It shows a greater possibility to inhabit this area year round. The Great Cormorant was described to be rare in this area. Still possible though. Let me know if you have some different ideas.