Alsop, Fred J.. Birds of the Smokies. Great Smoky Mountains Association, 2003.

Alsop, Fred J.. Birds of the Great Smoky Mountains: A Checklist for the Birds of Great Smoky Mountains National Park. Rev. ed. Great Smoky Mountains Natural Hisotry Association, 2001.

Alsop, Fred J.. Bird Checklists of the United States, A Checklist for the Birds of Great Smoky Mountains National Park. Vol. 2014. U.S. Geological Survey, 1995.

Alsop, Fred J., and Steve Kemp. Birds of the Smokies. Gatlinburg, Tennessee: Great Smoky Mountains Natural History Association, 1991.

Alsop, Fred J.. "Changes in the Spruce-fir Avifauna of Mt. Guyot, Tennessee, 1967-1985." Journal of the Tennessee Academy of Science 66, no. 4 (1991): 207-209.

Alsop, Fred J.. "First Records of Scissor-Tailed Flycatcher in the Great Smoky Mountains National Park." The Migrant 61, no. 3 (1990): 66.

Alsop, Fred J., and Thomas F. Laughlin. "Censuses of a Breeding Bird Population in a Virgin Spruce-Fir Forest on Mt. Guyot, Great Smoky Mountains National Park, Before and After Balsam Wooly Aphid Infestation." In Twelfth Annual Scientific Research Meeting, Great Smoky Mountains National Park. Johnson City, Tennessee: National Park Service, Southeast Regional Office, 1986.

Alsop, Fred J.. "The Season." The Migrant 51, no. 3 (1980): 59-60.

Alsop, Fred J.. "Bonaparte's Gull in Great Smoky Mountains National Park." The Migrant 43, no. 3 (1972): 72-73.

Alsop, Fred J.. "Bird Finding in Tennessee:  Great Smoky Mountains National Park, Part II:  The Cades Cove Loop." The Migrant 42, no. 4 (1971): 83-85.

Alsop, Fred J.. "Bird Finding in Tennessee: Great Smoky Mountains National Park, Part I: Birding from the Lowlands to "Canada"." The Migrant 42, no. 3 (1971): 54-56.

Alsop, Fred J.. "A Census of Breeding Bird Population in a Virgin Spruce Fir Forest on Mt. Guyot, Great Smoky Mountains National Park." The Migrant 41, no. 3 (1970): 49-55.

Alsop, Fred J.. "Little Blue Herons in Great Smoky Mountains National Park." The Migrant 41, no. 3 (1970): 58-59.

Alsop, Fred J.. "Northern Phalarope in the Great Smoky Mountains National Park." The Migrant 41, no. 2 (1970): 39-40.

Alsop, Fred J.. "Barn Swallows Nesting in the Great Smoky Mountains National Park." Migrant 40, no. 3 (1969): 66-67.

Alsop, Fred J.. A Census of a Breeding Bird Population in a Virgin Spruce-fir Forest on Mt. Guyot, Great Smoky Mountains National Park In Zoology. Knoxville, TN: The University of Tennessee, 1968.