Wintering shorebird abundance on Tomales Bay, Marin County, California, USA, 1989-2018

<p>Contains data on abundance of shorebirds on Tomales Bay, Marin County, CA, USA from Nov 1989 through Feb 2019. Data were collected as part of an ongoing, long-term monitoring project. Surveys covered all appropriate shorebird habitat on Tomales Bay, and counted all individual shorebirds in those areas.</p>