Madigan Donnally, a four-year-old from Boulder, Colo., releases leaf cutter bees in his grandparents' backyard bee sanctuary at 2112 Riviera Drive. It’s just past 9:30 a.m. at Mary Donnally’s house in ...

Those wild bee houses you see for sale online and in garden catalogs are not just cutesy-looking things designed to separate your money from your wallet. When properly designed, they really do work ...