From the event page - 

Celebrate World Animal month by participating in a BioBlitz!

Located in Milpitas, we will explore Coyote Creek Trail near McCarthy Boulevard. We will start at the Coyote Creek Trail - Ranch Drive entry, and explore north and south along the trail. Join Keep Coyote Creek Beautiful, BioBlitz Club, and Santa Clara Valley Audubon Society in cataloging and documenting all of the living things that reside there. We will have experts in various fields to help guide participants through all the cool plants and wildlife.

All you need to participate is a smart phone with the iNaturalist app! 

For more info and RSVP click here.