Xenophon, On Hunting - Short treatise on hunting with hounds (431-355 BC). [English, Greek] - http://www.perseus.tufts.edu/cgi-bin/ptext?lookup=Xen.+Hunt.+1.1
Selected Harrier Reading - Bibliography of hunting literature, especially pertaining to harriers. - http://www.harriers.net/harriers/selected_reading.html