I am a professor of mathematics at Fordham University in New York City. Professionally, my research is in computer algebra in pure and applied mathematics. I am the author of a computer algebra system that performs far better than the well known ones do in certain matrix and polynomial computations.

I started birding as a graduate student at Cornell University 40+ years ago (who's counting?). Since then I have lived in South Carolina, North Carolina, New York, New Mexico, and Australia. Twenty years ago my birding interests grew to be dominated by gulls and gull photography. Then for many years I put birding photography aside. I've recently finally joined the digital revolution. My favorite places to bird are Australia, Hatteras, Arizona, New Mexico, Portugal, Montauk, and the closest large dump. Some day I'm sure I'll have the time to rebroaden my birding activities.