American Robins (like this male seen here with its young), House Finches, and Song Sparrows may all nest within one small garden. By selecting different nesting strata, the species avoid competing for the same nesting sites. If you plant your garden in multiple layers – trees both short and tall, shrubs, and ground-hugging thickets – you may be rewarded with a multi-layered medley of bird song.More info and transcript at BirdNote.org. Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to get ad-free listening and other perks. BirdNote is a nonprofit. Your tax-deductible gift makes these shows possible.