Central Flyway Mid-winter Survey Results 2021

Document - application/pdf
Central Flyway Mid-winter Survey Results 2021

The Central Flyway’s 2021 Mid-Winter Waterfowl Survey results are shared in this report.  It was completed during January 1-13, 2021.  Most areas important to waterfowl were covered by aerial or ground survey crews.

The total waterfowl count for 2021 was 16% lower than in 2020. The total duck count decreased 34% and the total goose count increased 14%. The 2021 total duck count also was 34% below the 2010-2019 average, and the total goose count was 30% above the average. The mallard count decreased by 7% from that of last year, and was 30% below the 2010-2019 average. Counts of both dabbling ducks and diving ducks declined by 34% from last year, with dabbling ducks 35% below the 2010-2019 average and diving ducks 16% below the average. The increase in goose counts in 2021 was due to increased numbers of light geese; the numbers of greater white-fronted geese and Canada/cackling geese both were slightly higher than counts from last year. Both Nebraska and South Dakota had high counts of trumpeter swans; the count at Lacreek National Wildlife Refuge in South Dakota was a record-high one day count. More specific information for species and populations are provided in this report.

Attachment Size
central-flyway-midwinter-survey-report-2021.pdf2.32 MB 2.32 MB
James Dubovsky
Publication date
Type of document
Annual Report
The Migratory Bird Program works with partners to protect, restore and conserve bird populations and their habitats for the benefit of future generations by: ensuring long-term ecological sustainability of all migratory bird populations, increasing socioeconomic benefits derived from birds,...