Dr. Robin Silver appeals from the order of the United States District Court for the District of New Mexico denying his application to intervene in plaintiff-appellee Coalition of Arizona/New Mexico Counties for Stable Economic Growth’s (“Coalition”) suit against the Department of the Interior (“DOI”), the United States Fish and Wildlife Service (“FWS”) and various government officials. The Coalition challenges FWS’s decision to *839 protect the Mexican Spotted Owl (“the Owl”) under the Endangered Species Act (“the Act”), alleging that FWS failed to follow proper procedures and lacked data sufficient to list the Owl as threatened. Dr. Silver sought to intervene pursuant to the Rule 24 of the Federal Rule of Civil Procedure. Dr. Silver grounded his application upon two facts: (1) he had photographed and studied the Owl in the wild; and (2) he was instrumental in FWS’s initial decision to protect the Owl under the Act, see, e.g., 58 Fed. Reg. 14,248, 14,252 (1993) (citing Dr. Silver’s petition as instigating FWS’s decision to list the Owl as an endangered species).
An order denying intervention is final and subject to immediate review if it prevents the applicant from becoming a party to an action.
Stringfellow v. Concerned, Neighbors in Action,
I. BACKGROUND
Dr. Silver is a commercial wildlife photographer, an amateur biologist, and a naturalist, specializing in photographing creatures in the American Southwest. Dr. Silver has sought out and photographed the Owl in its natural habitat — old-growth forests in the Southwest. For the past five years, he has been active in the effort to protect the Owl and its habitat. In December 1989, Dr. Silver petitioned FWS to list the Owl as a threatened or endangered species. See 16 U.S.C. § 1533(b)(3)(A) (an “interested person” may petition FWS to add a species to the threatened and endangered species list). When FWS failed to act on his petition within the statutory time limit, see 16 U.S.C. § 1533(b)(3)(B), Dr. Silver wrote a letter dated November 9,1992, to the Secretary of the Interior threatening suit under the Act’s citizen lawsuit provision, see 16 U.S.C. § 1540(g)(2)(C).
In April 1993, FWS listed the Owl as a threatened species.
See
58 Fed.Reg. 14,248 (1993). However, FWS failed to designate critical habitat for the Owl, stating that “[djesignation of critical habitat is prudent, but is not determinable at this time.”
Id.; see
16 U.S.C. § 1533(b)(6)(C). On November 11, 1993, Dr. Silver wrote the Secretary of Interior and the Director of FWS, threatening suit. In December 1993, Dr. Silver and other environmentalists filed suit in the United States District Court for the District of Arizona to force the designation of critical habitat for the Owl.
See
Aplt’s Br. Attach. 3 (the Arizona District Court’s unpublished Order in
Silver v. Babbitt,
In September 1994, the Coalition filed the present lawsuit in the United States District Court for the District of New Mexico challenging the listing of the Owl as an endangered and threatened species under the Act. The Coalition alleges that FWS failed to follow proper procedures and lacked data sufficient to list the Owl as threatened. In May 1995, Dr. Silver filed an application to intervene as of right, or in the alternative, permissively, pursuant to Fed.R.Civ.P. 24. Both the .Coalition and the DOI opposed his application, and in July 1995 the district court denied it. The district court did, however, permit Dr. Silver to submit a brief as amicus curiae.
On appeal, Dr. Silver argues that it was error for the court to deny his petition to intervene as of right for the following reasons: he filed his petition in a timely fashion; he has a direct, substantial and legally pro-tectable interest in the subject matter of the action; his interest might be impaired absent
*840
his intervention; and The DOI will not adequately represent his interest.
See
Fed. R.Civ.P. 24(a)(2);
Alameda Water & Sanitation Dist. v. Browner,
II. DISCUSSION
Fed.R.Civ.P. 24(a)(2) provides, in relevant part, as follows:
Upon timely application anyone shall be permitted to intervene in an action ... when the applicant claims an interest relating to the property or transaction which is the subject of the action and the applicant is so situated that the disposition of the action may as a practical matter impair or impede the applicant’s ability to protect that interest, unless the applicant’s interest is adequately represented by existing parties.
Fed.R'.Civ.P. 24(a)(2). Accordingly, an applicant may intervene as of right if: (1) the application is “timely”; (2) “the applicant claims an interest relating to the property or transaction which is the subject of the action”; (3) the applicant’s interest “may as a practical matter” be “impair[ed] or impede[d]”; and (4) “the applicant’s interest is [not] adequately represented by existing parties.”
Id.
We review for an abuse of discretion á district court’s rulings on the timeliness of ah application for intervention as of right, but we review de novo a district court’s rulings on the three remaining requirements under Rule 24(a)(2).
See Alameda Water & Sanitation Dist.,
A Dr. Silver has a direct, substantial and legally protectable interest in the listing of the Owl.
Dr. Silver must first show that he has “an interest relating to the property or transaction which is the subject of the action.” Fed. R.Civ.P. 24(a)(2). The contours of the interest requirement have not been clearly defined.
See
7C Charles Alan Wright, Arthur R. Miller
&
Mary Kay Kane,
Federal Practice and Procedure
§ 1908 at 263 (2d ed. 1986 & Supp.1996). Dr. Silver cites
Idaho Farm Bureau Fed’n v. Babbitt,
Our circuit and the Fifth Circuit require that “[the] interest in the proceedings be ‘direct, substantial, and legally protectable.’”
Vermejo Park Corp. v. Kaiser Coal Corp. (In re Kaiser Steel Corp.),
Dr. Silver initiated the process to protect the Owl by submitting a petition for its protection, see 58 Fed.Reg. 14,248, 14,252 (1993) (referring to the date FWS received Dr. Silver’s petition as the initial event of the listing process). He pressed DOI and FWS in two letters to take action on his petition, see Aplt’s Br., Attach. 1, 2, and sued FWS when it failed to designate critical habitat for the Owl, see id, Attach. 3 (Order of the United States District Court for the District of Arizona mandating that FWS publish a proposed designation of critical habitat for the Owl). When FWS failed to comply with the court order to designate a critical habitat for the Owl, Dr. Silver twice moved for an order of contempt, see id, Attach. 4, 5, resulting in a court order that FWS maintain a daily diary and inform Dr. Silver of its progress toward the designation of critical habitat, see id, Attach. 8.
We are not faced, as the Coalition suggests, with an applicant who has no interest in the present litigation other than prior litigation involving the same subject matter. Instead, Dr. Silver has been directly involved with the Owl as a wildlife photographer, an amateur biologist, and a naturalist who has photographed and studied the Owl in its natural environment. Dr. Silver’s counsel admitted at oral argument that Dr. Silver had little economic interest in the Owl; however, economic interest is not the sine qua non of the interest analysis for intervention as of right. To limit intervention to situations where the applicant can show an economic interest would impermissibly narrow the broad right of intervention enacted by Congress and recognized by the courts.
See Nuesse,
Additionally, Dr. Silver’s interest in the Owl is legally protectable as evidenced by his successful effort to have the Owl protected as an endangered species under the Act. Section 1533(b)(3) of the Act requires the Secretary of the Interior to respond within twelve months to a petition submitted by an “interested person” requesting that the Secretary list a species as threatened or endangered, and if listing is warranted, to publish a proposed regulation for comment. 16 U.S.C. § 1533(b)(3). Dr. Silver first threatened suit and later exercised his right under section 1540(g)(1)(C) to commence a civil suit against the DOI for failure to perform its non-discretionary duty under section 1533(b)(3). Thus, the Act provided Dr. Silver with the legal right to protect his interest in the Owl. Additionally, section 1540(g)(1)(A) of the Act gives a private citizen the right to “commence a civil suit on his own behalf ... to enjoin any person, including the United States and any other governmental instrumentality or agen-
*842
ey ..., who is alleged to be in violation of [the Act].” 16 U.S.C. § 1540(g)(1)(A). Language from the Supreme Court in
Lujan v. Defenders of Wildlife
further bolsters our conclusion that Dr. Silver’s interest is legally protectable: “[T]he desire to use or observe an animal species, even for purely esthetic purposes, is undeniably a cognizable interest for purpose of standing.”
Because Dr. Silver’s interest in the litigation between the Coalition and the DOI is direct, substantial, and legally protectable, it sufficiently “relates to the property or transaction which is the subject of the action” and thereby satisfies the first element under Rule 24(a)(2).
Cf. Hazardous Waste Treatment Council v. South Carolina (In re Sierra Club),
We recently discussed the interest requirement of Rule 24(a)(2) in
City of Stilwell v. Ozarks Rural Elec. Coop.,
*843
The decision in
Ozarks
echoes that of an earlier Tenth Circuit case,
Allard v. Frizzell,
The nature of the litigation between the Coalition and the DOI is different from that in
Ozarks Rural Electric Coop,
and
Allard.
Both of those cases involved what has been called traditional intervention.
See United States v. Hooker Chemicals & Plastics Corp.,
In
Alameda Water & Sanitation District,
we addressed the interest requirement in the context of an administrative action. We held that a public interest group lacked sufficient interest in the litigation because the interest group wanted to “offer extraneous evidence beyond the administrative record, and thus beyond the scope of the narrow issue before the district court.”
However,
Alameda Water & Sanitation District
lends support to Dr. Silver’s argument that his advocacy for the Owl establishes his interest in the litigation for the purpose of Rule 24(a)(2). In a footnote in
Alameda Water &
Sanitation.
District,
we distinguished
Regents of the University,
*844 The Coalition argues that the only-interest Dr. Silver has in the litigation is his desire to transfer jurisdiction to the United States District Court for the District of Arizona, which has handled the litigation surrounding Dr. Silver’s petition to have the Owl protected under the Act.- This argument is without merit. If a party has the right to intervene under Rule 24(a)(2), the intervenor becomes no less a party than others and has the right to file legitimate motions, including venue motions. It then becomes the charge of the district court to sort through the motions including, in this case, a possible motion to transfer. Further, the right to file a brief as amicus curiae is no substitute for the right to intervene as a party in the action under Rule 24(a)(2).
The Coalition’s contention that Dr. Silver is forum shopping and that we should not allow him to succeed in this most disfavored practice also rings hollow. If anyone has forum shopped in this action it would appear to be the Coalition. Instead of bringing the present action in New Mexico, the Coalition could have applied to intervene in the action already pending in Arizona. The purpose of Rule 24(a), the prevention of “a multiplicity of suits where common questions of law or fact are involved,”
see Washington Elec. Coop. v.
Massachusetts,
Mm. Wholesale Elec. Co.,
B. Dr. Silver’s Interest May Be Impaired
- To satisfy the second element under Rule 24(a)(2), Dr. Silver must show that the disposition of the Coalition’s suit against the DOI “may as a practical matter impair or impede his ability to protect [his] interest.” Fed.R.Civ.P. 24(a)(2). Such impairment or impediment need not be “of a strictly legal nature.”
Natural Resources Defense Council, Inc. v. United States Nuclear Regulatory Comm’n,
' In its complaint against the DOI, the Coalition contends that the DOI “failed to use the best available data,” misapplied the data, used unfounded assumptions and jeopardized the Southwestern forest ecosystem. Aplt’s App. at 15-22 (Coalition’s “Complaint for Declaratory and Injunctive Relief’). As part of its remedy, the Coalition seeks “[a] permanent injunction enjoining [the DOI] from taking any actions pursuant to the listing of the [Owl].” Id. at 25. If the district court were to rule in favor of these contentions and to mandate that the DOI delist the Owl, Dr. Silver’s interest in the protection of the Owl would be impaired. Dr. Silver could submit a new petition to FWS to protect the Owl; however, he would, “as a practical matter,” be impaired by the stare decisis effect of the district court’s decision, not to mention the direct effect of a possible permanent injunction. Furthermore, the Owl and its habitat would not be protected under the Act while Dr. Silver tried to lift such a permanent injunction and FWS considered Dr. Silver’s new petition.
C. The Existing Parties Do Not Adequately Represent Dr. Silver’s Interest
The burden is on the applicant in intervention to show that the representation by the existing parties may be inadequate, but this burden is “minimal.”
National Farm Lines,
Our decision in
National Farm Lines,
‘We have here ... the familiar situation in which the governmental agency is seeking to protect not only the interest of the public but also the private interest of the petitioners in intervention, a task which is on its face impossible. The cases correctly hold that this kind of a conflict satisfies the minimal burden of showing inadequacy of representation.”
Id. at 384.
Like ICC in
National Farm Lines,
DOI must represent the public interest, which may differ from Dr. Silver’s particular interest in the protection of the Owl in the habitat where he has photographed and studied the Owl.
Cf. Trbovich,
III. CONCLUSION
We hold that Dr. Silver has a right to intervene in the action pursuant to Fed. R.Civ.P. 24(a)(2) because: Dr. Silver has a direct, substantial and legally protectable interest in the subject of the action between the Coalition and DOI; this interest may be impaired by the determination of the action; and neither DOI nor the Coalition will adequately represent Dr. Silver’s interest. Because Dr. Silver may intervene as of right under Rule 24(a)(2), it is unnecessary to consider the question of intervention as a matter of discretion under Rule 24(b)(2). We therefore reverse the order denying Dr. Silver’s motion to intervene under Rule 24(a)(2) and remand the case to the District Court for the District of New Mexico with the direction that Dr. Silver’s application to intervene be granted.
Notes
. The DOI did not submit a brief on appeal and therefore waived its opportunity to argue against Dr. Silver’s intervention at oral argument. See Fed. R.App. P. 31(c).
. The Coalition’s counsel failed to appear at oral argument. After contacting the Coalition's counsel by telephone, we heard argument from Dr. Silver's counsel and allowed the Coalition to stand on its briefs. See Fed. R.App. P. 34(e).
. Dr. Silver's argument that the Coalition has conceded all but the last issue — adequate representation — -is unfounded. Dr. Silver's support for this concession comes from the Coalition's Opposition to Dr. Silver's Application to Intervene filed in the district court, see Aplt's App. at 91, which Dr. Silver characterizes as “noting all four requirements for intervention as of right, but challenging only adequacy of representation.” See Aplt's Br. at 10 n. 10. This is an accurate characterization as far as it goes, see Aplt's App. at 92-3; however, we do not believe the Coalition has conceded the second and third requirements merely by focusing upon the fourth.
. We note that a motion to intervene in the litigation between Dr. Silver and FWS taking place in Arizona was filed by the State of Arizona, Apache County, and White Sands Forest Products, Inc. and was denied.
See Silver v. Babbitt,
