Here are a couple of pictures I got of an Anhinga bird. Sometimes they are called the snakebird because of their long neck. They catch fish by swimming under water.
https://photos.smugmug.com/photos/i-NcHhh6M/0/3f2c5fc4/X2/i-NcHhh6M-X2.jpg
They swim with only their head and neck above the water. They come up onto land to eat the fish they catch.
https://photos.smugmug.com/photos/i-mQtTXsZ/0/bcc24eba/X2/i-mQtTXsZ-X2.jpg
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