Waterfowl Surveys

Flock of waterfowl at Sutter NWR by Mike Peters

Waterfowl surveys have historically been conducted bi-monthly by refuge biologists from October through February. Starting fall 2016, surveys will be conducted once-monthly. Please note that wildlife regularly move around the Sacramento Valley.

The latest Waterfowl Surveys

Check out the Waterfowl Status Report by the USFWS and Canadian Wildlife Service.

2020-21 Season: 
Surveys are done once a month, around mid-to-late month.  It takes approximately 7-14 days for biologists to transcribe and post survey results.

  • August 2020
  • September 2020
  • October 2020
  • November 2020 - surveys scheduled week of Nov 16
  • December 2020 - surveys scheduled week of Dec 14
  • January 2021 - surveys scheduled week of Jan 19
  • February 2021 - surveys scheduled week of Feb 15


Previous Years: