https://apnews.com/dee16bd144fb41b9b8e625e5522c9ae5 > DETROIT (AP) — Visitors to the Detroit Zoo in Royal Oak will get the chance to participate in data collection and other activities as part of Citizen Science Day. > Activities taking place from 11 a.m. to 3 p.m. Saturday include FrogWatch, which teaches volunteers how to identify frogs and toads by their breeding calls, and an e-bird activity that identifies native birds using silhouettes.