By August, most birds in North America have finished nesting, bringing billions of new birds into the world. So many birds. It might make you wonder: what is the most abundant bird in North America?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.