A great change is happening in your yard right now - some of your winter birds are heading north, while others are arriving every day.
Across North America, Haikuboxes listened for and identified birds using their songs and calls - bioacoustic data we turned into maps so we can see their migration patterns.
This video, created with 2025 Haikubox identification data, shows how wintering Dark-eyed Juncos were quickly replaced in the spring with arriving Great Crested Flycatchers.
Notice those western green patches of non-migrating Juncos? Learn more about their recently established breeding populations in Southern California in our blog post.