Neotropic Cormorants are monogamous and breed in colonies.

Prey competition can occasionally occur with the Neotropic Cormorant over fish, but that species (in spite of smaller body size) usually takes larger fish.

This colony is growing and now hosts over 2,200 heron, egret, Roseate spoonbill, Anhinga, Neotropic cormorant and ibis nests each year.

Neotropic Cormorant or Olivaceous Cormorant, Phalacrocorax brasilianus (or Phalacrocorax olivaceus)

Nowadays tourism is one of the main activities of the islands, where typical Delta wildlife such as the Neotropic Cormorant, Capybara and Marsh Deer can be seen.

It is home to more than 200 species of birds, including ducks, Great Egrets, geese, Neotropic Cormorants, raptors, Snowy Egrets, wading birds, and shorebirds.

Recently, many authorities such as the American Ornithologists' Union have begun to use Phalacrocorax brasilianus after M. Ralph Browning argued that Piso's description and paintings do indeed refer to the Neotropic Cormorant.

Birds recorded from the reserve include the Fulvous Whistling Duck, Blue-winged Teal, Osprey, Wattled Jacana, Black-necked Stilt, Cocoi Heron, Striated Heron, Anhinga and Neotropic Cormorant.

She also reviewed the fishing activity of Olivaceous Cormorants.

Within a day or two, the binoculars were like a new body part, and I was able to distinguish a snakebird from an olivaceous cormorant with ease.

As the ferry nears Galveston, also check for olivaceous cormorants, large, dark blue birds with hooked bills that often perch on the pilings near the dock.

Neotropic Cormorant or Olivaceous Cormorant, Phalacrocorax brasilianus (or Phalacrocorax olivaceus)

Neotropic Cormorant or Olivaceous Cormorant, Phalacrocorax brasilianus (or Phalacrocorax olivaceus)

Recently, many authorities such as the American Ornithologists' Union have begun to use Phalacrocorax brasilianus after M. Ralph Browning argued that Piso's description and paintings do indeed refer to the Neotropic Cormorant.