Species Information

Species Lists

Avibase - The World Bird Database

Taxonomic and distribution information (including maps) for 10,000+ species (and also subspecies) of birds in the world, including bird names in several languages.  Maintained by Bird Studies Canada.

Bird Checklists of the United States

Bird checklists from state, federal and private management areas, nature preserves, and other areas of special interest in the United States. Maintained by USGS Northern Prairie Wildlife Research Center.

ICE Biological Inventory Databases

Species lists from Biosphere Reserves and other protected areas around the world.  Maintained by the Information Center for the Environment.

Seasonal Bird Lists

Breeding and winter season bird lists by map location in the U.S. and Canada, based on data from the North American Breeding Bird Survey and Audubon Christmas Bird Count.  Maintained by USGS Patuxent Wildlife Research Center.


This NBII site is developed and maintained by the U.S. Fish & Wildlife Service
and the U.S. Geological Survey's Patuxent Wildlife Research Center.

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