Intensive method of animal production demands a great control over the farm animals and their environment. Housing requirements serve two major functions for the breeder. First, permit the organization and concentration of the flock into a manageable unit and, secondly provide a physical environment that is conductive to optimal production. The flocks which are kept under defective housing requirements "suffering" and this will badly affect productivity in the form of behavioural disorders and sub-optimal performance (Fraser; 1988). The aim of the present work is to study the abnormal behaviour of pigeon which may arise due to defective stocking density.