A manual of North American birds - Ridgway, Robert, 1850 -1929 (J.B. Lippincott, 1887)

Manual of the botany (Phænogamia and Pteridophyta) of the Rocky mountain region, from New Mexico to the British boundary - Coulter, John Merle, 1851 -1928 (Ivison, Blakeman, Taylor, and Company, 1885)

A manual of the ornithology of the United States and of Canada - Nuttall, Thomas, 1786 -1859 (Hilliard and Brown, 1832)

A manual of the ornithology of the United States and of Canada : the land birds - Nuttall, Thomas, 1786 -1859 (Hilliard, Gray, and Co, 1840)

A manual of the ornithology of the United States and of Canada - Nuttall, Thomas, 1786 -1859 (Hilliard and Brown, 1834)

The Marin County breeding bird atlas : a distributional and natural history of coastal California birds - Point Reyes Bird Observatory. (Bushtit Books, 1993)

The Marine Mammal Commission compendium of selected treaties, international agreements, and other relevant documents on marine resources, wildlife, and the environment - U.S. Fish; Wildlife Service (The Commission, 1994)

Maryland : a journal of natural history - Natural History Society of Maryland (Natural History Society of Maryland, 1944)

Maryland birdlife - Maryland Ornithological Society. (Maryland Ornithological Society, 1971)

Maryland birdlife - Maryland Ornithological Society. (Maryland Ornithological Society, 1974)

Maryland birdlife - Maryland Ornithological Society. (Maryland Ornithological Society, 1995)

Maryland birdlife - Maryland Ornithological Society. (Maryland Ornithological Society, 1996)

Maryland birdlife - Maryland Ornithological Society. (Maryland Ornithological Society, 1998)