SUPPLEMENTARY INFORMATION:

Background

We proposed to designate for the southwestern willow flycatcher 376,095 acres (ac) (152,124 hectares (ha)) [including approximately 1,556 stream miles (2,508 stream kilometers)] of critical habitat, which includes various stream segments and their associated riparian areas, not exceeding the 100-year floodplain or flood prone area, on a combination of Federal, State, Tribal, and private lands in southern California, southern Nevada, southwestern Utah, south-central Colorado, Arizona, and New Mexico. The proposed rule was published in the Federal Register (69 FR 60706) on October 12, 2004, pursuant to a court order.

On September 30, 2003, in a complaint brought by the Center for Biological Diversity, the U.S. District Court of New Mexico instructed us to propose critical habitat by September 30, 2004, and publish a final rule by September 30, 2005. Additional background information is available in the October 12, 2004, proposal to designate critical habitat.

Critical habitat identifies specific areas that are essential to the conservation of a listed species and that may require special management considerations or protection. If the proposed rule is made final, section 7 of the Act will prohibit adverse modification of critical habitat by any activity funded, authorized, or carried out by any Federal agency. Federal agencies proposing actions affecting areas designated as critical habitat must consult with us on the effects of their proposed actions, pursuant to section 7(a)(2) of the Act.

Section 4 of the Act requires that we consider economic and other relevant impacts prior to making a final decision on what areas to designate as critical habitat. We are currently developing a draft economic analysis and draft environmental assessment for the proposal to designate certain areas as critical habitat for the southwestern willow flycatcher and will announce their availability at a later date. We may revise the proposal, or its supporting documents, to incorporate or address new information received during the comment period. In particular, we may exclude an area from critical habitat if we determine that the benefits of excluding the area outweigh the benefits of including the area as critical habitat, provided such exclusion will not result in the extinction of the species.

Pursuant to 50 CFR 424.16(c)(2), we may extend or reopen a comment period upon finding that there is good cause to do so. We are currently developing a draft economic analysis and draft environmental assessment for the proposal and will announce the availability of those documents and solicit data and comments from the public on these draft documents at a later date. We will also announce hearing dates concurrently with the availability of the draft documents. However, it is our intention to leave the public comment period open and uninterrupted until those documents are available for public consideration and comment. We believe that allowing the comment period to expire before the full set of supporting draft analytical documents is available could result in hurried and incomplete comments on our proposed rule and unnecessarily frustrate respondents. We deem these considerations as sufficient cause to extend the comment period.

We are required by court order to complete the final designation of critical habitat for the southwestern willow flycatcher by September 30, 2005. To meet this date, all comments on or proposed revisions to the proposed rule need to be submitted to us during the comment period as extended by this document (see DATES ).

Our practice is to make comments, including names and home addresses of respondents, available for public review during regular business hours. Individual respondents may request that we withhold their home address, which we will honor to the extent allowable by law. If you wish us to withhold your name or address, you must state this request prominently at the beginning of your comments. However, we will not consider anonymous comments. To the extent consistent with applicable law, we will make all submissions from organizations or businesses, and from individuals identifying themselves as representatives or officials of organizations or businesses, available for public inspection in their entirety.

Comments and materials received, as well as supporting documentation used in preparation of the proposal to designate critical habitat, will be available for public inspection, by appointment, during normal business hours at the Arizona Ecological Services Office (see ADDRESSES section).

Authority

The authority for this action is the Endangered Species Act of 1973 (16 U.S.C. 1531 et seq.).

69 FR 72161