Population Monitoring, Migration, Ornithology
Web sites that are hubs for population study projects, online migration monitoring, or the scientific study of birds

Mycoplasmal Conjunctivitis in Wild Songbirds
Article, "The Spread of a New Contagious Disease in a Mobile Host Population"
• First observed at feeders in Washington, D.C., in 1994, this disease, which causes House Finches' eyelids to crust over and close, is speading geographically, and to American Goldfinches.