American oystercatchers, once nearly erased from New England's shores, are staging a notable rebound—though the AP reports that it's far from a happily-ever-after. A coordinated, decade-long push by 35 organizations in 16 states has helped boost the striking black-and-brown shorebird's numbers by 45% along the Atlantic and Gulf coasts since 2008. Backed by roughly $10 million, the effort has centered on one key finding: chick survival drives the population. That insight led to site-specific fixes—roping off nesting areas, installing low fences to block egg-hungry predators, restricting dogs and vehicles where birds nest, and educating beachgoers to "share the shore." Some places report sharp gains, including a 77% jump in breeding pairs on Martha's Vineyard and nearly 20% growth in North Carolina.
But biologists warn the progress is fragile. Rising seas and erosion are already washing out nests, forcing states to build shell islands and elevated platforms. At the same time, new Endangered Species Act rules that ease development restrictions in critical habitats—so long as animals aren't directly killed—have sparked lawsuits and fears of renewed losses. "It's a direct attack on the protections that have allowed many of these shorebird species to recover," says Alan Kneidel, a senior conservation biologist with Manomet Conservation Sciences.