Double-crested Cormorant (Seen in The Woodlands, TX)

Double-crested Cormorant -- Note the gorgeous eye color! They nest in large colonies, in large messy stick nests.
  In breeding plumage, the double-crested cormorant is black, with a bronze and green gloss.Also during this breeding season, this cormorant gets two tiny tufts of feathers over the eyes -- this is why he is called "double crested" !!
Double-crested Cormorant, juvenile  
Neotropic Cormorant (Seen in The Woodlands, TX)
Neotropic Cormorant (winter plumage) The Neotropic Cormorant (on the right) is much smaller than the Double-crested Cormorant. Note that the yellow doesn't encircle his eye, and the tail is longer.