One of the greatest joys of spring is hearing the beautiful songs of birds in our yards and parks. Singing usually starts when birds arrive on their breeding grounds, to defend territories and attract mates. There are many digital apps and online resources (https://www.xeno-canto.org/ or https://www.allaboutbirds.org) for learning and verifying bird vocalizations, so that, with practice, you can identify a species even if you can’t see it. Many experienced birders can identify birds by ear only, an important skill for surveys such as the Breeding Bird Survey. But, mostly, it is about knowing who is setting up a home in your neighborhood.