Academic Search Complete is the world's most valuable and comprehensive scholarly, multi-disciplinary full-text database, with more than 6,100 full-text periodicals, including more than 5,100 peer-reviewed journals. In addition to full text, this database offers indexing and abstracts for more than 10,100 journals and a total of more than 10,600 publications including monographs, reports, conference proceedings, etc. The database features PDF content going back as far as 1887, with the majority of full text titles in native (searchable) PDF format. Searchable cited references are provided for more than 1,000 journals.
Birds of North America (BNA) Online provides a living resource of comprehensive life histories and current research for more than seven hundred species of birds breeding in the United States (including Hawaii) and Canada. Published by Cornell Lab of Ornithology and American Ornithologists' Union. Content includes photographs, illustrations, and videos displaying plumages, behaviors, habitat, nests, eggs, and more. In addition BNA Online includes sound recordings and calls of the species from Cornell's Macaulay Library of Natural Sounds. Contents are updated frequently, with contributions from researchers, citizen scientists, and designated reviewers and editors.
"The National Biological Information Infrastructure (NBII) is a broad, collaborative program to provide increased access to data and information on the nation's biological resources. The NBII links diverse, high-quality biological databases, information products, and analytical tools maintained by NBII partners and other contributors in government agencies, academic institutions, non-government organizations, and private industry. NBII partners and collaborators also work on new standards, tools, and technologies that make it easier to find, integrate, and apply biological resources information. Resource managers, scientists, educators, and the general public use the NBII to answer a wide range of questions related to the management, use, or conservation of this nation's biological resources.
The NBII Program is managed by the U.S. Geological Survey's Biological Informatics Office." from web site