Very good two-volume set in slipcase. First American Edition. Previous owner's name on endpapers and title page. Shelf wear. The classic work on diurnal birds of prey. Illustrated with 125 color paintings by Roger Tory Peterson, J.C. Harrison, Don R. Eckelberry, David Reid-Henry, Albert Earl Gilbert, C.E. Talbot Kelly, Guy Coheleach, Lloyd Sandford, Malcolm Ellis, Cornelius J. Ward, and J.G. Williams. Section of 94 pages of range maps.