https://animaldiversity.org/accounts/Anas/pictures/?start=135
Anas (dabbling ducks and teals) | PICTURES | Animal Diversity Web
dabbling ducksanastealspicturesanimal
https://www.usgs.gov/media/images/mid-winter-population-size-indices-dabbling-ducks
Mid winter population size indices for dabbling ducks | U.S. Geological Survey
Mid-winter population size indices for dabbling ducks in Suisun Marsh during 1953 to 2009. Solid line illustrates the population trend and was estimated with a...
mid winterpopulation size