Cormorant

Neotropic Cormorant

This Neotropic Cormorant was brought to the Wildlife Center by a Texas Parks and Wildlife game warden.  The bird presented with a wing droop and was very lethargic.  Veterinarian exam and x-rays showed no breaks or swelling.  The cormorant was put on cage rest and was given fluids.  Several days later it was on its feet and eating great. The Neotropic Cormorant is very common on the Mexican border. The Galveston area also supports a large population.  This cormorant is the only one that ranges over the entire tropical American region of Western hemisphere thus having the name neotropic.  It was known as the olivaceous cormorant in earlier times. The neotropic is a blackish bird with a long tail that holds its neck in a S shape.  The pointed posterior edge of the gular skin is often pointed with whitish border.  Their bill is long with a hook on the end. Juvenile cormorant begin brown and slowly shift to black with their adult plumage. Cormorants swim well and dive for fish from the surface.   The staff and volunteers know the cormorant at the center is feeling better because it is doing a great deal of vocalizing.  This consists of a low gutteral pig-like grunt.  Every time they hear it everyone’s head snaps to attention thinking someone just brought in a pig.  Upon leaving the water the cormorants hold wings and tail open in a “spread eagle” fashion to dry them. And while holding the wings out to dry seems like a good idea, why do so few exhibit this trait, all sea birds and water birds get their feathers wet. Some researchs believe that the "spread eagle" pose is a method of themal regulation. Vultures often [...]