Stilts hold the avian record for the longest legs relative to body size. From on high, the Black-necked Stilt uses its excellent vision to scan mudflats for small invertebrate prey. Stilts also feel for prey by sweeping their sensitive bills through the water. In the presence of predators, stilts quickly flock together as one intimidating black-and-white mass. This defense strategy is so effective that birds of other species often try to join the flock.