Hagdon

noun

1. One of several species of sea birds of the genus Puffinus; esp., Puffinus major, the greater shearwarter, and Puffinus Stricklandi, the black hagdon or sooty shearwater; -- called also hagdown, haglin, and hag. See shearwater.
2. One of several species of sea birds of the genus Puffinus, especially, P. major, the greater shearwarter, and P. stricklandi, the black hagdon or sooty shearwater.