Owls of the United States and Canada: a complete guide to their biology and behavior.
Baltimore: Johns Hopkins University Press, 2007. Quarto, dustwrapper, colour photographs, maps.
The colour photographs in the guide are complemented with a wealth of information about anatomy, habitat, diet, and family life. For each of the nineteen species that inhabit Canada and the United States, a range map and a brief discussion of distribution, population size, and status are included.