The California Department of Fish and Wildlife (CDFW) has completed its 2022 waterfowl breeding population survey. The resulting data indicate the overall number of breeding ducks has decreased by 19 percent, including mallards that are the most abundant duck in the survey. … The full Breeding Population Survey Report, which can be found on the CDFW website, indicates the total number of ducks … is 30 percent below the long-term average. The estimated breeding population of mallards decreased from 239,830 in 2019 to 179,390 this year, which is below their long-term average. The decline is attributed to the ongoing drought and the loss of upland nesting habitat for ducks.