Neotropical Birds Online

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Neotropical Birds Online is an online encyclopedia whose subject is the bird species that breed in the Neotropics.

In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined.

Neotropical Birds Online is patterned after Birds of North America . Each account profiles a single species, and the accounts are published in the order in which they are completed. The project is sponsored by the Cornell Lab of Ornithology at Cornell University, a leading US research center in ornithology. The list of species covered by Neotropical Birds Online is based on the two avian checklist committees of the American Ornithologists' Union: the North American Classification Committee (NACC), which is responsible for the taxonomy and nomenclature of bird species found in North and Central America, including the Caribbean; and the South American Classification Committee, which covers the birds of South America and of related islands.

Birds of North America is a comprehensive encyclopedia of bird species in the United States and Canada, with substantial articles about each species. It was first published as a series of 716 printed booklets, prepared by 863 authors, and made available as the booklets were completed from 1992 through 2003. The project was overseen by the American Ornithologists' Union in partnership with the Academy of Natural Sciences of Philadelphia.

The Cornell Lab of Ornithology is a member-supported unit of Cornell University in Ithaca, New York which studies birds and other wildlife. It is housed in the Imogene Powers Johnson Center for Birds and Biodiversity in Sapsucker Woods Sanctuary. Approximately 250 scientists, professors, staff, and students work in a variety of programs devoted to the Lab's mission: interpreting and conserving the Earth's biological diversity through research, education, and citizen science focused on birds. Work at the Lab is supported primarily by its 75,000 members. The Cornell Lab publishes books under the Cornell Lab Publishing Group, a quarterly publication, Living Bird magazine, and a monthly electronic newsletter. It manages numerous citizen-science projects and websites, including the Webby Award-winning All About Birds.

Cornell University Private Ivy League research university in Upstate New York

Cornell University is a private and statutory Ivy League research university in Ithaca, New York. Founded in 1865 by Ezra Cornell and Andrew Dickson White, the university was intended to teach and make contributions in all fields of knowledge—from the classics to the sciences, and from the theoretical to the applied. These ideals, unconventional for the time, are captured in Cornell's founding principle, a popular 1868 Ezra Cornell quotation: "I would found an institution where any person can find instruction in any study."

Each species account has a consistent format. The content of each account provides comprehensive information for each species. The topics that are covered include identification, distribution and habitat, foraging and reproductive behavior, the conservation status of the species, and the author's suggestions for the highest priorities for future research on that species. Also provided are a map of the distribution of the species and, when available, photographs of the species, its habitat, and of the nest and eggs. Also provided, when available, are recordings of the species' song and calls, selected from the collection in the Macaulay Library at the Cornell Lab of Ornithology and from other online sources, such as xeno-canto.

The Macaulay Library is the world's largest archive of animal sounds. It includes more than 175,000 audio recordings covering 75 percent of the world's bird species. There are an ever-increasing numbers of insect, fish, frog, and mammal recordings. The video archive includes over 50,000 clips, representing over 3,500 species. The Library is part of Cornell Lab of Ornithology of the Cornell University.

xeno-canto is a citizen science project and repository in which volunteers record, upload and annotate recordings of birdsong and bird calls. Since it began in 2005, it has collected over 400,000 sound recordings from more than 10,000 species worldwide, and has become one of the biggest collections of bird sounds in the world. All the recordings are published under one of the Creative Commons licenses, including some with open licences.

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