Come to this online meeting where Lexington resident and iNaturalist expert Barbara Katzenberg will walk you through how to record observations for the City Nature Challenge that begins the next day and runs through Monday, April 26. If you haven’t already, please download the iNaturalist app to your smartphone (it’s free!) and create an iNaturalist account. iNaturalist is an online social network of people who care about biodiversity and want to contribute to knowledge and learn from each other. Also have a sprig handy of something with leaves to practice on (a conifer or evergreen broadleaved plant like holly). Register here to receive the Zoom link. Questions? Email [email protected].