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WASHINGTON — A federal judge on Wednesday blocked the Trump administration’s plan to ease protections for an iconic bird that makes its home on millions of acres of oil and gas-rich sagebrush lands, dealing a blow to government efforts to allow more drilling, mining and logging in the west.

Judge B. Lynn Winmill of the United States District Court for the District of Idaho granted a preliminary injunction that suspends efforts by the Department of Interior’s Bureau of Land Management to weaken protections for the bird, known as the greater sage grouse, in ten states.

While the halt is temporary, the judge indicated that the environmental organizations that brought the legal challenge — arguing that the Interior Department failed to consider reasonable alternatives and did not thoroughly examine the environmental consequences of its actions — is likely to prevail.

“Under these weakened protections, the B.L.M. will be approving oil and gas leases, drilling permits; rights of way for roads; pipelines and power lines; coal and phosphate mining approvals and livestock grazing permit renewals,” Judge Winmill wrote. “It is likely that these actions will cause further declines of the sage grouse under the weakened protections.”