Research & Monitoring

The BANS-TAC coordinates annual breeding colony surveys along the Feather and Sacramento Rivers. An effective research and monitoring program is an essential component of the recovery plan to conserve the Bank Swallows and their habitat. Insight gained from research and monitoring efforts will inform management and conservation actions.

Statewide Colony Inventory 2021

The upcoming statewide inventory will allow CDFW to estimate California’s bank swallow population size and develop a robust long-term monitoring plan. Surveys in 2021 will provide a new baseline for tracking bank swallow population trends. More information is available on this page.

Selected Publications

  • Bank Swallow (Riparia riparia) Conservation Strategy for the Sacramento River Watershed, California (BANS-TAC 2013) (pdf)
  • Population Trends and Management of the Bank Swallow on the Sacramento River (Garrison et al. 1989) (pdf)
  • Monitoring Bank Swallow Populations on the Sacramento River: A Decade of Decline (Schlorff 1997) (pdf)
  • Bank Swallows on the Sacramento River, a 10-year Update on Populations and Conservation Status - Dawn Garcia, Ronald Schlorff, and Joe Silveira (2008) (pdf)
  • Report a Bank Swallow Colony-Altacal Audubon Society (2008) (pdf)

Population Status Reports

Annual Population Survey Reports

Survey Protocols

bank swallow flying near nest entrance

Bank Swallow (Riparia riparia) near a nest entrance

Bank Swallow in hand

Bank Swallow (Riparia riparia)

eroding bank - habitat

A colony nesting on an eroding, vertical bank on the Sacramento River