The San Francisco Botanical Garden is a living ecosystem with an extraordinary diversity of plants and animals. According to Don Mahoney, curator of plant collections, it is a one-of-a-kind botanical garden.

Have you ever wondered what messages birds are conveying in their calls? Allan Ridley, field ornithologist in the Garden, shares some great tips to understanding what we are hearing.

Our guest is Allan Ridley, San Francisco Botanical Garden field ornithologist, who awakens us to the excitement of finding birds and observing their behavior in this virtual birding tour.