Midday temperatures in southeast Arizona soar above 100 degrees during the month of July. But relief is coming. A summer monsoon refreshes the Sonoran Desert like a second spring. Grass grows lush, wildflowers spring forth, and birds sing. Cassin’s Sparrows sing their plaintive phrases almost nonstop. Botteri’s Sparrows add their distinctive sputters and trills. And a Rufous-winged Sparrow — like the one pictured here — voices its gentle melody.The sounds heard in this episode were recorded by Gordon Hempton and provided courtesy of QuietPlanet.com.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.