In what year was the Kirtland's Warbler officially reclassified as Threatened under the Endangered Species Act?

Answer

2018

By the 2010s, the population increased, leading to a historic change in status; in 2018, the species was officially removed from the Federal List of Endangered and Threatened Wildlife, being reclassified as Threatened.

In what year was the Kirtland's Warbler officially reclassified as Threatened under the Endangered Species Act?

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I Tracked Down the RAREST Warbler in the United States! - YouTube

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