There is also an increase in the population of bitterns and kingfishers. The family Ardeidae contains the bitterns, herons and egrets. There Huxley found egrets, herons and bitterns. The family Ardeidae contains the bitterns, herons, and egrets. The neck is longer in the day herons than the night herons and bitterns. Twelve species of bitterns, herons, and egrets have been recorded in Georgia. The family Ardeidae contains the herons, egrets, and bitterns. Ibises, spoonbills, herons, and bitterns have been classified in the same order.