1) Superficially involved 
• (p. pr. & vb. n.) of Dabble
Working a lure up and down in the same spot a dozen or more times in a bush or beside a tree.
(from the article `anseriform`) Three main lines of feeding behaviour have evolved in the waterfowl—diving, dabbling, and grazing. Those that dive for food fall into two groups: ...
A foraging technique in which a bird moves the beak rapidly on the surface of shallow water to pick up small aquatic animals and plant materials; it is used by “dabbling ducks” and a few other species.
A method of certain waterfowl, using their bill along the surface of the water, screening for food.
refers to ducks that feed mostly on vegetable matter by submerging their upper bodies enabling them to graze below the surface; rarely will they dive for food. Some examples are Mallard, American Black Duck, Gadwall and Northern Pintail