New research from the Cornell Lab of Ornithology points to acid rain as a major cause of songbird decline, where previous research focused on forest fragmentation. Along with a press release and a downloadable Adobe Acrobat (.pdf) version of the entire study, the site includes other ornithological resources, news items, and information about the lab.

A Cornell Lab of Ornithology creation, this All About Birds website provides birders with a wealth of resources. The website features a first-rate online bird guide with photos, songs and calls, range maps, and information on reproduction, behavior, habitat, and more. The site's Birding 1, 2, 3 program offers instructions for identifying birds, where to go birding, and how to report observations...

From the highly regarded Cornell Lab of Ornithology, this online Educator's Guide offers "activity ideas and support materials to learn about birds and conduct inquiry-based research." The Guide contains 10 introductory activities that encourage students to become a species specialist, go on a bird walk, set up a bird feeder, color in a downloadable Bird Coloring Book, and more. The website also...

The Cornell Lab of Ornithology has distinguished itself by creating great public-oriented educational programs. Representing this tradition of public outreach, the Lab's Urban Bird Studies program encourages urbanites to participate in a global data collection project that will be utilized by scientists at the Cornell Lab. Anyone can participate, and project participants can choose from various...

A massive effort co-sponsored by Cornell University's Laboratory of Ornithology and the National Audubon Society, the Great Bird Count's goal is to "provide a detailed picture of how bird populations compare region-by-region, as counted by ordinary citizens at the time of year when most migratory birds are just getting ready to head back north from their wintering grounds." The site contains...

Ivory-billed Woodpecker Chat [Real Player] http://www.nature.org/chat/lordgodbird/index.html?src=search The Search for the Ivory-Billed Woodpecker http://www.birds.cornell.edu/ivory/ Audubon: Ivory-billed woodpecker http://www.mass.gov/lib/collections/dc/Audubon/Ivory_Billed_Woodpecker.htm Ivory-billed woodpecker [pdf] http://www.fws.gov/ivorybill/ Big Woods Conservation...

This extensive ornithology website was created by Dr. Roger Lederer, a veteran ornithologist and professor of Biological Sciences at California State University, Chico. Dr. Lederer’s site is a well-organized portal to a plethora of bird information websites in such areas as Migration; Birds in the Backyard; Raptors; Feeding Birds; Teacher Resources; Songs and Calls, and more. The website also...

Devoted entirely to issues related to migratory birds, this site provides broad and accessable information on the millions of songbirds that breed in the U.S. and Canada and spend the winter in Latin America and the Caribbean. John Sterling maintains this site which contains seven fact sheets that discuss the relationship between migratory birds and coffee, insect consumption, the importance of...

The American Ornithologists' Union (AOU) was established in 1883, making it "the oldest and largest organization in the New World devoted to the scientific study of birds." Although primarily "a professional organization, its membership of about 4,000 includes many amateurs dedicated to the advancement of ornithological science." The AOU website contains information about membership, upcoming...

Well known among ornithologists, the Academy of Natural Sciences' VIREO (Visual Resource for Ornithology) is "the world's most comprehensive collection of bird photographs. It houses over 96,000 35mm slides and 5,000 black-and-white prints of over 6,100 bird species," including every species of bird in North America. The VIREO homepage contains four sections: Slides for Publication & Reference...