Learn to be a nest box volunteer. Oakland County Parks manages 175 nest boxes at seven parks for Eastern Bluebirds, Tree Swallows, House Wrens and Black-Capped Chickadees. Nest boxes are monitored by trained volunteers through the Oakland County Parks Citizen Science Program. This training will provide information about the birds, monitoring techniques and other volunteer requirements. Volunteers are asked to check nest boxes routinely from March through August. Nests are tracked in NestWatch through the Cornell Lab of Ornithology. The training is free and open to anyone interested in learning about nest box monitoring.