The Killdeer. When flushed from the nest, the adults do a "broken-wing display." This distraction display commonly involves dragging one or both wings or the tail on the ground while making calls and fluttering as the bird moves away from the nest. Once sufficiently far from the nest, the adult will then fly or run away. The species name is Latin vociferus or shouting noisily), which refers to its loud call.
I do believe that is what this fellow was doing.