I watched this Sanderling run over and catch this Butterfish. The Butterfish hunt on the tide, and are often stranded above water. Luckily this fish can breath air through it's gills. The Sanderling struggled for at least 5 minutes to kill and swallow the fish. At times I actually thought the Butterfish would win this battle. But this determined little wader was going to have it's fish and butter sauce.