((a)) ** In general** Unless and except as permitted by regulations made as hereinafter provided in this subchapter, it shall be unlawful at any time, by any means or in any manner, to pursue, hunt, take, capture, kill, attempt to take, capture, or kill, possess, offer for sale, sell, offer to barter, barter, offer to purchase, purchase, deliver for shipment, ship, export, import, cause to be shipped, exported, or imported, deliver for transportation, transport or cause to be transported, carry or cause to be carried, or receive for shipment, transportation, carriage, or export, any migratory bird, any part, nest, or egg of any such bird, or any product, whether or not manufactured, which consists, or is composed in whole or part, of any such bird or any part, nest, or egg thereof, included in the terms of the conventions between the United States and Great Britain for the protection of migratory birds concluded (), the United States and the United Mexican States for the protection of migratory birds and game mammals concluded , the United States and the Government of Japan for the protection of migratory birds and birds in danger of extinction, and their environment concluded , and the convention between the United States and the Union of Soviet Socialist Republics for the conservation of migratory birds and their environments concluded .39 Stat. 1702August 16, 19161916-08-16February 7, 19361936-02-07March 4, 19721972-03-04November 19, 19761976-11-19
((b)) ** Limitation on application to introduced species**
((1)) ** In general** This subchapter applies only to migratory bird species that are native to the United States or its territories.
((2)) ** Native to the United States defined**
((A)) ** In general** Subject to subparagraph (B), in this subsection the term “native to the United States or its territories” means occurring in the United States or its territories as the result of natural biological or ecological processes.
((B)) ** Treatment of introduced species** For purposes of paragraph (1), a migratory bird species that occurs in the United States or its territories solely as a result of intentional or unintentional human-assisted introduction shall not be considered native to the United States or its territories unless—
((i)) it was native to the United States or its territories and extant in 1918;
((ii)) it was extirpated after 1918 throughout its range in the United States and its territories; and
((iii)) after such extirpation, it was reintroduced in the United States or its territories as a part of a program carried out by a Federal agency.