"A Visit with the Falconer of the Falcon Field," "Hawks," "Nest Parasitism of Hawks," "The Prairie Falcons of Williams Canyon Colorado," "The Flying Dutchess," "The Training of a Red-Tailed Hawk," "The Internal Thoracic Skeleton of the Dragonflies"

William L. Engels, E. Sunderville

Correspondence from the 1930s and 1940s concerning falconry, including letters to a young falconer (1947-1948) with much information on the sport; research and manuscripts on falcons, hawks and other birds containing locations of eyries, articles, notes and illustrations; photographs of hawks and falcons Sargent trained as hunters; drawings of hawks and falcons; and diagrams of furniture and fittings used in falconry.

"How to Band Nestling Hawks, Owls, and Eagles"

John Downes, "Observations on Falconry"; Col. E. Delme Radcliff, "Falconry"; George G. Goodwin, "Winged Monarchs of the Air"

Correspondence from the 1930s and 1940s concerning falconry, including letters to a young falconer (1947-1948) with much information on the sport; research and manuscripts on falcons, hawks and other birds containing locations of eyries, articles, notes and illustrations; photographs of hawks and falcons Sargent trained as hunters; drawings of hawks and falcons; and diagrams of furniture and fittings used in falconry.

Locations of nests of falcons, in the U.S. and abroad

Locations of falcon nests by state: Alabama, Alaska, Arizona, California, Colorado, Connecticut, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Maine

Locations of falcon nests by state: Maryland, Massachusetts, Michigan, Minnesota, Montana, Nebraska, New Hampshire

Locations of falcon nests by state: New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oregon