Which specific behavior is noted when Ring-billed Gulls forage near water to uncover smaller prey hidden in the substrate?

Answer

Stamping their feet in the water

The technique of stamping feet in the water is specifically mentioned as a method to help flush out small invertebrates concealed beneath the substrate in shallow areas.

Which specific behavior is noted when Ring-billed Gulls forage near water to uncover smaller prey hidden in the substrate?
dietbirdanimalgull