A tiny Midwestern bird is ready to fly off the endangered species list.

The U.S. Fish and Wildlife Service on Wednesday will propose taking the interior population of the least tern off the endangered list.

The least tern was hurt by the damming of major rivers like the Missouri and before that by hunting for feathers for hats. But since it was listed as endangered in 1985, the population has increased tenfold to more than 18,000.

In this 2007 photo provided by the U.S. Army Corps of Engineers, researchers look for interior least terns during a survey of the lower Mississippi River. Once hurt the by the damning of major rivers like the Missouri and before that diminished by hunting for feathers for hats, the interior tern population has increased tenfold in population since 1985 to more than 18,000. On Wednesday, Oct. 23, 2019, the U.S. Fish and Wildlife Service will propose taking the interior population of the least tern off the endangered list. (USACE, Memphis District via AP)

In this 2007 photo provided by the U.S. Army Corps of Engineers, researchers look for interior least terns during a survey of the lower Mississippi River. Once hurt the by the damning of major rivers like the Missouri and before that diminished by hunting for feathers for hats, the interior tern population has increased tenfold in population since 1985 to more than 18,000. On Wednesday, Oct. 23, 2019, the U.S. Fish and Wildlife Service will propose taking the interior population of the least tern off the endangered list. (USACE, Memphis District via AP)

Even conservationists and advocacy groups that often battle the Trump administration over what goes on and off the endangered species list hail the long-trek migrating bird's recovery as an environmental success story.

FILE - In this Saturday, May 1, 2010 file photo, a least tern checks her two eggs on the beach in Gulfport, Miss. Once hurt the by the damning of major rivers like the Missouri and before that diminished by hunting for feathers for hats, the interior tern population has increased tenfold in population since 1985 to more than 18,000. On Wednesday, Oct. 23, 2019, the U.S. Fish and Wildlife Service will propose taking the interior population of the least tern off the endangered list. (AP PhotoDave Martin)

FILE - In this Saturday, May 1, 2010 file photo, a least tern checks her two eggs on the beach in Gulfport, Miss. Once hurt the by the damning of major rivers like the Missouri and before that diminished by hunting for feathers for hats, the interior tern population has increased tenfold in population since 1985 to more than 18,000. On Wednesday, Oct. 23, 2019, the U.S. Fish and Wildlife Service will propose taking the interior population of the least tern off the endangered list. (AP PhotoDave Martin)
In this 2018 photo provided by the U.S. Army Corps of Engineers, researchers look for interior least terns during a survey of the Lower Mississipi River. Once hurt the by the damning of major rivers like the Missouri and before that diminished by hunting for feathers for hats, the interior tern population has increased tenfold in population since 1985 to more than 18,000. On Wednesday, Oct. 23, 2019, the U.S. Fish and Wildlife Service will propose taking the interior population of the least tern off the endangered list. (USACE, Memphis District via AP)

In this 2018 photo provided by the U.S. Army Corps of Engineers, researchers look for interior least terns during a survey of the Lower Mississipi River. Once hurt the by the damning of major rivers like the Missouri and before that diminished by hunting for feathers for hats, the interior tern population has increased tenfold in population since 1985 to more than 18,000. On Wednesday, Oct. 23, 2019, the U.S. Fish and Wildlife Service will propose taking the interior population of the least tern off the endangered list. (USACE, Memphis District via AP)