Endangered and Threatened Wildlife and Plants; Designation of Critical Habitat for Elfin-Woods Warbler

We, the U.S. Fish and Wildlife Service (Service), propose to designate critical habitat for the elfin-woods warbler (Setophaga angelae) under the Endangered Species Act (Act). In total, approximately 10,977 hectares (ha) (27,125 acres (ac)) in the Maricao, San Germ[aacute]n, Sabana Grande, Yauco, R[iacute]o Grande, Canovanas, Las Piedras, Naguabo, Ceiba, Cayey, San Lorenzo, Guayama, and Patillas Municipalities in Puerto Rico fall within the boundaries of the proposed critical habitat designation. If we finalize this rule as proposed, it would extend the Act's protections to this species' critical habitat. We also announce the availability of a draft economic analysis for the proposed designation.