A Killdeer (Charadrius vociferus) runs along the bank of the Verde River (which you can hear inthe background), flying at the end to safety. His name means the "Talkative Plover" and he's well-named - both sexes pipe constantly, it seems.
A pair of adolescent Killdeers make sure they aren't ignored by their parents as they feed along the mud flats at the edge of Peck's Lake [Arizona]. This went on for a half hour or so!