Disappearing: Rusty Blackbirds

Rusty blackbirds are mysteriously disappearing from North America. These songbirds – cousins to meadowlarks and orioles – were described as “traveling in great noisy flocks” and “enormous numbers” just a few decades ago. Today their decline is now estimated at between 90 and 99 percent, the steepest decline of any songbird in North America.   Link to story.