Commercial harvesting of waterfowl all but ended with the Migratory Bird Treaty Act of 1918.

FORBES: Duck Calls

On June 23, 2011, Foiles pleaded guilty to a criminal Information charging him with one misdemeanor count each for the unlawful sale of wildlife in violation of the Lacey Act, and for unlawfully taking migratory game birds in violation of the Migratory Bird Treaty Act.

FORBES: Duck, Duck, Goose: Professional Hunting Guide Sentenced to Prison

They include Obstruction of Congress, misconduct, neglect, violation of the Clean Water Act and the Migratory Bird Treaty Act.

FORBES: BP's Federal Contract Ban Will Hurt U.S. Taxpayers, Not Just BP

Holder said his lawyers are looking for potential violations of the Clean Water Act, The Oil Pollution Act, The Migratory Bird Treaty Act and Endangered Species Acts, and other criminal statutes.

FORBES: For BP, It Gets Even Worse