English: Gray langurs are diurnal. They sleep during the night in trees but also on man-made structures like towers and electric poles when in human settlements.[18] When resting in trees, they generally prefer the highest branches.[19] Ungulates like bovine and deer will eat food dropped by foraging langurs.[20] Langurs are preyed upon by leopards, dholes and tigers.[21] Wolves, jackals and pythons may also prey on langurs.