Page 16 - Don Lyons News Today : Breaking News, Live Updates & Top Stories | Vimarsana

In Morgan Heim’s images, the Columbia River’s colonies of trouble-making waterbirds become as fascinating as they can be frustrating.

The situation is ironic. A troubled species rebounds thanks to restoration efforts, only to make things worse for others in peril by preying on them or outcompeting them for food and living space.

Wildlife experts in the United States are struggling with a problem: As some kinds of threatened animals increase in number, they put pressure on other at-risk creatures.

U.S. populations of the seabird have crashed in the past half century. Researchers hope an upcoming series of surveys will reveal how bad the situation is—and if the bird should be considered endangered.

In a forest near Lake Michigan, two scientists attached a backpack tracking device to a merlin they'd lured into a net. The mission: help prevent the predatory species from gobbling up piping plovers — highly endangered shorebirds that nest nearby.