Mark J. Billings was a protégé of Guy McCaskie and Richard A. Erickson. He is a frequent contributor to the birding records contained in North American Birds.
Mark has the eyes of a hawk. He can see and identify seabirds far beyond the range of an ordinary human being. His hearing is that of legend. He has been known to hear a Mangrove Yellow Warblers calling from two city blocks away, in traffic, then find it. How does he do this? We do not know.
Guy McCaskie shares some pelagic birding wisdon with Mark J Billings Jan 1, 2010
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