| ANAS | type genus of the Anatidae: freshwater ducks |
|---|---|
| ANAS | long-necked river duck of the Old and New Worlds having elongated central tail feathers |
| ANAS | American widgeon the male of which has a white crown |
| ANAS | freshwater duck of the northern hemisphere having a broad flat bill |
| ANAS | common teal of Eurasia and North America |
| ANAS | American teal |
| ANAS | freshwater duck of Eurasia and North Africa related to mallards and teals |
| ANAS | wild dabbling duck from which domestic ducks are descended |
| ANAS | small Eurasian teal |
| ANAS | dusky black duck of northeastern United States and Canada |
| ANAS | squash bugs |
| ANAS | large black American bug that sucks sap of vines of the gourd family |