Step outside on any spring day and you’ll almost certainly be greeted by a vibrant choir of birdsong. But why do birds sing, how are these songsters capable of such amazing vocal feats, and what triggers the soundtrack of spring?

Join Shannon Burke, Marin County Parks Interpretive Naturalist, to find out! This free, virtual lecture is intended for ages 18 and up.

This free program is sponsored by the Corte Madera Branch of Marin County Free Library and Marin County Parks.

Get details at the Marin County Parks website.