By means of this cantrip, the druid is
able to imitate the call of any of a number
of common, feathered creatures. The
druid must have already heard the sound
of the bird to be imitated sometime in his
career, and may only imitate one type of
bird with each casting. The spell lasts
only 2-5 segments, and the area of effect
depends upon the caster's ability to
project sound. The somatic gesture
consists of clasping both hands around the
mouth while the lips are puckered to
create a whistling noise when breath is
exhaled.