The latest revised edition (2019) of the Checklist of Birds in Yolo County is free. To request a copy send your name and mailing address to info@yolobirdalliance.org and one will be sent to you.
Many thanks to the YAS Checklist Committee (Steve Hampton, Secretary; Keith Bailey; Michael Perrone, Jr.; and Kirk Swenson) for the hard work that goes into revising a birding checklist. Sincere thanks to Judy and John Whitcombe for their financial support for publication of the new list. We are also very grateful to Sarah Mayhew for the cover illustration.