1. American Ornithologists' Union. 1983. Check-list of North American birds. 6th edition. American Ornithologists' Union, Baltimore, Maryland.
2. Recent Ornithological Literature
3. Askins, R. A., D. N. Ewert, and R. L. Norton. 1992. Abundance of wintering migrants in fragmented and continuous forests in the U.S. Virgin Islands. Pages 197-206 in J. M. Hagan III, and D. W. Johnston, editors. Ecology and conservation of Neotropical migrant landbirds. Smithsonian Institution Press, Washington, D.C.
4. How do migratory songbirds cross the Sahara?
5. Recent prospects on trans-Saharan migration of songbirds