NatureServe Explorer (information on 50,000+ North American animal and plant species and ecological communities)
NatureServe (producers of NatureServe Explorer) (NatureServe’s web site includes downloadable data sets with currently accepted names and status information for all North American species in 20 groups of animals)
InfoNatura (a source for conservation information on all 5,500 bird and mammal species of Latin America and the Caribbean - 44 countries and territories)
