Wildlife conservationists are preparing for the third annual return of the pair of endangered, migratory birds who have twice mated and successfully nested at Montrose Beach. Piping plovers nest on the beach, making the tiny birds and their chicks susceptible to predators, flooding, beach debris, and other harms. Shedd Aquarium will host a habitat restoration effort at Montrose Beach to make the birds’ upcoming mating and nesting season more successful. The beach cleanup will start at 10 a.m. April 11 at Montrose Beach. All are welcome to volunteer, including kids, and no prior experience is needed, according to the Shedd.