What does "dabbling duck" mean?

One of the ducks of species in subfamily Anatinae, that feed by dabbling in shallow water, including mallards and teals.

What is a synonym for "dabbling duck"?

Common synonyms include: dabbler, mallard, shoveler, widgeon, widgeons, wigeon.

noun

noun ·Rare ·Advanced level

Noun

1
One of the ducks of species in subfamily Anatinae, that feed by dabbling in shallow water, including mallards and teals.
2
any of numerous shallow-water ducks that feed by upending and dabbling wordnet