delivered the opinion of the Court.
Rеspondent Dwight Dion, Sr., a member of the Yankton Sioux Tribe, was convicted of shooting four bald eagles on the Yankton Sioux Reservation in South Dakota in violation of the Endangered Species Act, 87 Stat. 884, as amended, 16 U. S. C. § 1531
et seq.
(1982 ed. and Supp. II).
1
The District Court dismissed before trial a charge of shooting a golden eagle in violation of the Bald Eagle Protection Act, 54 Stat. 250, 16 U. S. C. § 668
et seq.
(Eagle Protection Act). Dion was also convicted of selling carcasses and pаrts of eagles and other birds in violation of the Eagle Protection Act and the Migratory Bird Treaty Act, 40 Stat. 755, as amended, 16 U. S. C. § 703
et seq.
The Court of Appeals for the Eighth Circuit affirmed all of Dion’s convictions except those for
I
The Eagle Protection Act by its terms prohibits the hunting of the bald or golden eagle anywhere within the United States, except pursuant to a permit issued by the Secretary of the Interior. The Endangered Species Act imposes an equally stringent ban on the hunting of the bald eagle. The Court of Appeals for the Eighth Circuit, however, sitting en banc, held that members of the Yankton Sioux Tribe have a treaty right to hunt bald and golden eagles within the Yankton Reservation for noncommercial purposes. 2 It further held that the Eagle Protectiоn Act and Endangered Species Act did not abrogate this treaty right. It therefore directed that Dion’s convictions for shooting bald eagles be vacated, since neither the District Court nor the jury made any explicit finding whether the killings were for commercial or noncommercial purposes. 3
All parties to this litigation agree that the treaty rights reserved by the Yankton included the exclusive right to hunt and fish on their land. See Brief for United States 19; Brief
II
It is long settled that “the provisions of an act of Congress, passed in the exercise of its constitutional authority, ... if clear and explicit, must be upheld by the courts, even in contravention of express stipulations in an earlier treaty” with a foreign power.
Fong Yue Ting
v.
United States,
We have required that Congress’ intention to abrogate Indian treaty rights be clear and plain. Cohen 223; see also
We have enunciated, however, different standards over the years for determining how such a clear and plain intent must be demonstrated. In some cases, we have required that Congress make “express declaration” of its intent to abrogate treaty rights. See
Leavenworth, L., & G. R. Co.
v.
United States,
A
The Eagle Protection Act renders it a fedеral crime to “take, possess, sell, purchase, barter, offer to sell, purchase or barter, transport, export or import, at any time or in any manner any bald eagle commonly known as the American eagle or any golden eagle, alive or dead, or any part, nest, or egg thereof.” 16 U. S. C. § 668(a). The prohibition is “sweepingly framed”; the enumeration of forbidden acts is “exhaustive and careful.”
Andrus
v.
Allard,
Congressional intent to abrogate Indian treaty rights to hunt bald and golden eаgles is certainly strongly suggested on the face of the Eagle Protection Act. The provision allowing taking of eagles under permit for the religious purposes of Indian tribes is difficult to explain except as a reflection of an understanding that the statute otherwise bans the taking of eagles by Indians, a recognition that such a prohibition would cause hardship for the Indians, and a decision that that problem should be solved not by exempting Indians from the coverage of the statute, but by authorizing the Secretary to issue permits to Indians where appropriate.
The legislative history of the statute supports that view. The Eagle Protection Act was originally passed in 1940, and did not contain any explicit reference to Indians. Its prohibitions related only to bald eagles; it cast no shadow on hunt
Before the start of hearings on the bill, however, the Subcommittee received a letter from Assistant Secretary of the Interior Frank Briggs on behalf of the Interior Department. The Interior Department supported the proposed bill. It noted, however, the following сoncern:
“The golden eagle is important in enabling many Indian tribes, particularly those in the Southwest, to continue ancient customs and ceremonies that are of deep religious or emotional significance to them. We note that the Handbook of American Indians (Smithsonian Institution, 1912) volume I, page 409, states in part, as follows:
“ ‘Among the many birds held in superstitious and appreciative regard by the aborigines of North America, the еagle, by reason of its majestic, solitary, and mysterious nature, became an especial object of worship. This is expressed in the employment of the eagle by the Indian for religious and esthetic purposes only.
“There are frequent reports of the continued veneration of eagles and of the use of eagle feathers in religious ceremonies of tribal rites. The Hopi, Zuni, and several of the Pueblo groups оf Indians in the Southwest havegreat interest in and strong feelings concerning eagles. In the circumstances, it is evident that the Indians are deeply interested in the preservation of both the golden and the bald eagle. If enacted, the bill should therefore permit the Secretary of the Interior, by regulation, to allow the use of eagles for religious purposes by Indian tribes.” House Hearings 2-3.
The House Committee reported out the bill. 7 In setting out the need for the legislation, it explainеd in part:
“Certain feathers of the golden eagle are important in religious ceremonies of some Indian tribes and a large number of the birds are killed to obtain these feathers, as well as to provide souvenirs for tourists in the Indian country. In addition, they are actively hunted by bounty hunters in Texas and some other States. As a result of these activities if steps are not taken as contemplated in this legislation, there is grave danger that the golden eagle will completely disappear.” H. R. Rep. No. 1450, 87th Cong., 2d Sess., 2 (1962).
The Committee also reprinted Assistant Secretary Briggs’ letter in its Report, id., at 3-5, and adopted an exception for Indian religious use drafted by the Interior Department. The bill as reported out of the House Committee thus made three major changes in the law, along with other more technical ones. It extended the law’s ban to golden eagles. It providеd that the Secretary may exempt, by permit, takings of bald or golden eagles “for the religious purposes of Indian tribes.” And it added a final proviso: “Provided, That bald eagles may not be taken for any purpose unless, prior to such taking, a permit to do so is procured from the Secretary of the Interior.”
Id.,
at 7. The bill, as amended, passed the
At the Senate hearings, representatives of the Interior Department reiterated their position that, because “the golden eagle is an important part of the ceremonies and religion of many Indian tribes,” the Secretary should be authorized to allow the use of eagles for religious purposes by Indian tribes. Protection for the Golden Eagle: Hearings before a Subcommittee of the Senate Committee on Commerce, 87th Cong., 2d Sess., 23 (1962). The Senate Committee agreed, and passed the House bill with an additional amendment allowing the Seсretary to authorize permits for the taking of golden eagles that were preying on livestock. That Committee again reprinted Assistant Secretary Briggs’ letter, S. Rep. No. 1986, 87th Cong., 2d Sess., 5-7 (1962), and summarized the bill as follows: “The resolution as hereby reported would bring the golden eagle under the 1940 act, allow their taking under permit for the religious use of the various Indian tribes (their feathers are an important part of Indian religious rituals) and upon request of a Governor of any State, be taken for the protection of livestock and game.” Id., at 3-4. The bill passed the Senate, and was concurred in by the House, with little further discussion.
It seems plain to us, upon reading the legislative history as a whole, that Congress in 1962 believed that it was abrogating the rights of Indians to take eagles. Indeed, the House Report cited the demand for eagle feathers for Indian religious ceremonies as onе of the threats to the continued survival of the golden eagle that necessitated passage of the bill. See
supra,
at 742. Congress expressly chose to set in place a regime in which the Secretary of the Interior had control over Indian hunting, rather than one in which Indian on-reservation hunting was unrestricted. Congress thus considered the special cultural and religious interests of Indians, balanced those needs against the conservаtion purposes of the statute, and provided a specific, narrow ex
Respondent argues that the 1962 Congress did not in fact view the Eagle Protection Act as restricting Indian on-reservation hunting. He points to an internal Interior Department memorandum circulated in 1962 stating, with little analysis, that the Eagle Protection Act did not apply within Indian reservations. Memorandum from Assistant Solicitor Vaughn, Branch of Fish and Wildlife, Office of the Solicitor to the Director, Bureau of Sport Fisheries and Wildlife, Apr. 26, 1962. We have no reason to believe that Congress was aware of the contents of the Vaughn memorandum. More importantly, however, we find respondent’s contention that the 1962 Congress did not understand the Act to ban all Indian hunting of eagles simply irreconcilable with the statute on its face.
Respondent argues, and the Eighth Circuit agreed, that the provision of the statute granting permit authority is not necessarily inconsistent with an intention that Indians would have unrestricted ability to hunt eagles while on reservations. Respondent construes that provision to allow the Secretary to issue permits to non-Indians to hunt eagles “for Indian religious purposes,” and supports this interpretation by pointing out testimony during the hearings to the effect that large-scale eagle bounty hunters sometimes sold eagle feathers to Indian tribes. We do not find respondent’s argument credible. Congress could have felt such a provision necessary only if it believed that Indians, if left free to hunt eagles on reservations, would nonetheless be unable to satisfy their own needs and would be forced to call on non-Indians to hunt on their behalf. Yet there is nothing in the legislative history that even remotеly supports that patronizing and strained view. Indeed, the Interior Department immediately after the passage of the 1962 amendments adopted regulations authorizing permits
only
to “individual Indians who are authen
Congress’ 1962 action, we conclude, reflected an unmistakable and explicit legislative policy choice that Indian hunting of the bald or golden eagle, except pursuant to permit, is inconsistent with thе need to preserve those species. We therefore read the statute as having abrogated that treaty right.
B
Dion also asserts a treaty right to take bald eagles as a defense to his Endangered Species Act prosecution. He argues that the evidence that Congress intended to abrogate treaty rights when it passed the Endangered Species Act is considerably more slim than that relating to the Eagle Protection Act. The Endangered Species Act and its legislative history, he points out, are to a great extent silent regarding Indian hunting rights. In this case, however, we need not resolve the question of whether the Congress in the Endangered Species Act abrogated Indian treaty rights. We conclude that Dion’s asserted treaty defense is barred in any event.
Dion asserts that he is immune from Endangered Species Act prosecution because he pоssesses a treaty right to hunt and kill bald eagles. We have held, however, that Congress in passing and amending the Eagle Protection Act divested Dion of his treaty right to hunt bald eagles. He therefore has no treaty right to hunt bald eagles that he can assert as a defense to an Endangered Species Act charge.
We do not hold that when Congress passed and amended the Eagle Protection Act, it stripped away Indian treaty protеction for conduct not expressly prohibited by that statute.
It would not promote sensible law to hold that while Dion possesses no rights derived from the 1858 treaty that bar his prosecution under the Eagle Protection Act for killing bald eagles, he nonetheless possesses a right to hunt bald eagles, derived from that same treaty, that bars his Endangered Species Act prosecution for the same сonduct. ■ Even if Congress did not address Indian treaty rights in the Endangered Species Act sufficiently expressly to effect a valid abrogation, therefore, respondent can assert no treaty defense to a prosecution under that Act for a taking already explicitly prohibited under the Eagle Protection Act.
Ill
We hold that the Court of Appeals erred in recognizing Dion’s treaty defense to his Eagle Protection Act and Endangerеd Species Act prosecutions. For the reasons stated in n. 3,
supra,
we do not pass on the claim raised by
amici
that the Eagle Protection Act, if read to abrogate Indian treaty rights, invades religious freedom. Cf.
United States
v.
Abeyta,
It is so ordered.
Notes
The jury verdict at trial did not conclusively establish that Dion is a member of the Tribe or that the killings took place on the reservation. See
The court held that tribal members have no treaty right to sell eagles, or to hunt eagles for commercial purposes.
On remand from the en banc court, an Eighth Circuit panel rejected a religious freedom claim raised by Dion. Dion does not pursue that claim here, and accordingly we do not consider it.
A statement made by the panel in rejecting that claim, though, easts some doubt on whether the issue of whether Dion had a treaty right to kill
We find that this case properly presents the issue whether killing eagles for noncommercial purposes is outside the scope of the Eagle Protection Act and fhe Endangered Species Act. The Eighth Circuit panel did not disturb the en banc court’s holding that Dion cannot be convicted absent a jury determination of whether the killings were for a commercial purpose, and vacated his convictions for shooting bald eagles because the jury made no such finding.' The Solicitor General argues that Dion’s convictions should have been affirmed whether the killings were for commercial or noncommercial purposes. The correctness of the holding below that killing for noncommercial purposes is not punishable, therefore, is squarely before us.
Such treaty rights can be asserted by Dion as an individual member of the Tribe. See
United States
v.
Winans,
We therefore do not address the Solicitor General’s argument that Dion’s hunting is outside the scope of the treaty right because that right does not protect hunting “to extinction.”
See also Wilkinson & Volkman, Judicial Review of Indian Treaty Abrogation: “As Long as Water Flows, or Grass Grows Upon the Earth”— How Long a Time Is That?, 63 Calif. L. Rev. 601 (1975) (hereinafter Wilkinson & Volkman).
Various witnesses, during the course of the Subcommittee hearings, gave testimony relating to the effect of the proposed ban on Indian tribes. See House Hearings 15, 20, 29, 34, 35, 39, 47.
Respondent’s argument that Congress in amending the Eagle Protection Act meant to benefit nontreaty tribes is also flawed. Indian reservations created by statute, agreement, or executive order normally carry with them the same implicit hunting rights as those created by treaty. See Cohen 224;
Antoine
v.
Washington,
