It is with heavy hearts that we at Team eBird recognize the passing of one of our best and longest-standing contributors–Bill Pulliam. For the last decade Bill worked tirelessly to promote eBird, both in his home state of Tennessee and beyond. Bill gave countless volunteer hours to eBird as an observer, an exemplary regional editor, and mentor to new regional editors. Bill led by example by submitting lists with high precision and detail and used this as a tool in working with observers. His approach to being an eBird reviewer was always positive and he encouraged and challenged observers to increase the quality of details about sightings. Bill’s influence with observers across Tennessee is apparent in the quality of the database and with those following in his footsteps. Bill was also actively engaged in discussions about eBird development and data quality, always driving us to do better, and often providing unique and valuable perspectives that were always well-reasoned, appreciated, and delivered with class. We greatly value the input he provided to this project, and the unshakable commitment he had to what we are trying to accomplish together with eBird. Bill’s passing is a huge loss to the Tennessee birding community, and indeed to our global eBird community. However, Bill left a lasting legacy with his friends and colleagues across Tennessee, the country, and the world. He will be greatly missed by all, and our hearts go out to his family and friends.