Science activity

Science activity #50207, updated 29 April 2022

Mid-Winter Waterfowl Survey [MWS]

Description / purpose

Some geese and ducks are not adequately monitored during the spring and summer because they nest in areas not well covered by breeding population surveys. Abundance indices for these species are obtained from surveys on wintering areas. Most of these surveys are targeted at specific species or populations. A nationwide effort to survey all waterfowl is conducted annually in January. This, the Mid-winter Waterfowl Survey, provides information on population trends for some species, distribution on the wintering grounds, and habitat use. The Mid-Winter Waterfowl Survey is conducted cooperatively by the states and the U.S. Fish and Wildlife Service.

Linked science activities

None specified

Collaborators

None specified

Activity status

  • 1 Awarded / Initiating (1966)
  • 2 In progress / Ongoing (1966 - 2019)
  • 3 Complete

Funding summary

Total allocated funding: $0

Location

Subbasins
Delta regions

Geographic tags

None specified

Products and outputs

Type Title Description Views
Link The Midwinter Waterfowl Survey In The Central Flyway (2002) Outlines how records have historically been collec 2
Data Migratory Bird Data Center The USFWS and USGS formed this Migratory Bird Data 4
Report Variation in Effort and Methodology for the Midwinter Waterfowl Inventory in the Atlantic Flyway Report (1989) about limitations of the survey: "M 0
Link Central Valley Midwinter Waterfowl Survey Redesign Outlines the post-2015 changes California made to 3
Link Mid Winter Waterfowl Survey main website this site links to resources and data collected fr 6

Type and context

Science action area

Management themes

Science themes

Types

None specified

Science functions

None specified

Management actions

Science Topics

Lead implementing organization

Partner implementing organizations

Funding organizations

None specified

Funding programs

None specified

Funding sources

None specified