Widely known for their erratic zig-zag flight pattern
Thinocoridae is a tiny family of gregarious waders that have evolved to eat only plants.
Members of this family are found in the Andean and Patagonian regions of South America. Although their links with other Charadriiformes groups are unknown, it has been proposed that the plains wanderer of Australia, jacanas, and painted snipes are their closest cousins.
They have long wings and resemble grouse, quail, and sandgrouse. Thinocorus seedsnipes are smaller, ranging in size from a sparrow to a snipe, but Attagis seedsnipes are bigger, reaching the size of a ptarmigan.