Crowdness is one of the important factors that affect adversely the production of poultry and it is defined as an impact upon the physiology of individual (Weaver et al., 1982) and also indicates an environ- mental condition that is hostile to the wellbeing of the organism and increases individuals variability and decrease production (Wyne et al., 1960, Southwick, 1971, Bolton et al., 1972, Gill & Leighton; 1984). Recent developments have now made it possible to pro- duce pigeons under intensive production. The aim of this work is a trial to investigate the effect of density on some aspects of pigeons performance.