This masterwork arrow is specially designed to emulate a bird's call when fired. Wood elf fletchers craft the arrows to make calls that will be recognized as signals by their fellow elves. For example, a hawk's cry might be used to signal an attack, while an owl's cry might signal a stealthy advance. Anyone overhearing the signal may, on a successful Survival check (DC 20), determine whether the call comes from a living bird or another source. The intricate carving of the arrows makes them clumsy in flight, resulting in a -2 penalty on attack rolls.