During early June in upstate New York, Mourning Doves have most likely had at least one brood of young. Within a week of leaving the nest, the young will be on their own, foraging under the birdfeeders with all the other doves. To pick out a young bird, look for buff edges on their wing feathers and/or breast feathers and possibly a shorter tail.
And even as we welcome young doves to our yards, you can look for adult birds engaged again in courtship and mating behaviors. Doves breed early, and can have multiple broods each breeding season.