Two environmental groups have filed a lawsuit against the federal Bureau of Land Management and the U.S. Fish and Wildlife Service for allegedly failing to protect the habitat for two endangered species of birds along Arizona’s Gila River. The Tucson-based Center for Biological Diversity and Maricopa Audubon Society said damage from cattle grazing is decimating the streams that the southwestern willow flycatcher and western yellow-billed cuckoo rely on. … The Gila River is a nearly 650-mile-long (1,046-kilometer-long) tributary of the Colorado River and flows through parts of Arizona and New Mexico.
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