Endangered and Threatened Wildlife and Plants; Designation of Critical Habitat for the Arizona Distinct Population Segment of the Cactus Ferruginous Pygmy-owl (Glaucidium brasilianum cactorum)

摘要

We, the U.S. Fish and Wildlife Service, propose designation of critical habitat pursuant to the Endangered Species Act of 1973, as amended (Act), for the cactus ferruginous pygmy-owl (Glaucidium brasilianum cactorum) (pygmy-owl). Information on the biological needs of the pygmy-owl that would help us define areas essential to its conservation is limited. However, we must respond to a court order issued on September 21, 2001, vacating critical habitat established for the pygmy-owl and remanding the previous designation of critical habitat for preparation of a new analysis of the economic and other effects of the designation (National Association of Home Builders et al. v. Norton, Civ.-00-903-PHX-SRB). This proposed designation, totaling approximately 488,863 hectares (ha) (1,208,001 acres (ac)), includes portions of Pima and Pinal Counties, Arizona, and includes approximately 9 percent of the recognized historical range of the pygmy-owl in Arizona. If this proposal is made final, section 7 of the Act would prohibit destruction or adverse modification of critical habitat by any activity funded, authorized, or carried out by any Federal agency. As required by section 4 of the Act, we