Sentence:  A ſpecies of duck, as large as a gooſe, and called the <WSD>loggerhead</WSD> duck at the Falkland Iſlands, is here met with, which beats the water with its wings and feet, and runs along the ſea with inconceivable velocity; ... 
Meaning of the word marked with <WSD> tags:  The (loggerhead duck) or (Falkland steamer duck) ("Tachyeres brachypterus"; formerly "Tachyeres cinereus"), a species of steamer duck endemic to the Falkland Islands.