pigeons find their way at night by reading the sky by
navigating according to the constellations
the man spent the last of his savings in paying an institute
to test his homing abilities. First they placed him in a
circular cage and recreated the changing positions of the
sun with mirrors, to observe how he shifted to compensate.
they placed him in a round cage open to the sky in which he
oriented himself in the normal direction for that locality
and time of year, then they took him to the planetarium and
projected night sky overhead: a familiar star pattern
produced a normal orientation but unfamiliar sky caused him
He never did find his way home that day and has been
reported missing ever since.