Checking the soil: Bees N Blooms hosts a soil testing workshop from 10 a.m. to 12:30 p.m. Feb. 7 at 3883 Petaluma Hill Road.

For instance, researchers use the backyard sightings that users submit to Project FeederWatch —a joint program run by the Cornell Lab of Ornithology and Birds Canada —to track long-term changes in ...