DOERING: On the first day of spring, I went for a walk in my Watertown, Massachusetts neighborhood at dusk. A brilliant red male cardinal sang from a power line.

DOERING: Then it was a robin’s turn to solo.

DOERING: I’ve heard their songs many times before, and they always bring a smile to my face and clear the winter blues away.

DOERING: I captured these familiar sounds of spring on nothing more than my circa 2017 iPhone, and you can too! So, what catches your ear when you’re out in nature? Or maybe, what catches your eye when you see who or what is living on earth? Share those sounds and thoughts with us by pressing record on Voice Memos, Voice Recorder or any other smartphone recording app. You can walk and talk but also be sure to stand still for at least two minutes, without talking or fidgeting, to get the best quality of the sound of your environment. After you have those two minutes or more of ambient sound, please hold the phone up near your mouth and clearly tell us who you are, where you are, and why you want to share this moment with us. Then you can email us the file at comments at loe dot org, and we might just use your audio postcard on the air! That’s comments at loe dot org.