• Endangered Species Program - USFWS:
http://www.fws.gov/endangered

• Piping Plover, Atlantic Coast Population:
http://www.fws.gov/northeast/pipingplover/

• Western Snowy Plover: www.fws.gov/arcata/es/birds/wsp/plover.html

• Endangered Wildlife Game Fact Sheets:
http://www.fws.gov/international/newspubs/fact_sheets.html

• Mexican Gray Wolf Web Site for kids:
http://www.fws.gov/southwest/es/mexicanwolf/kids_WF.shtml