Factors controlling the Population of the Partridge (Perdix perdix) in Great Britain.



The influence of various factors causing mortality among partridges is reviewed, with supporting statistics to show the losses at various stages from egg to adult. The available evidence indicates that the losses on a normal English game preserve average 22 per cent, of nests, 7 per cent. of eggs unhatched, 52 per cent, mortality among chicks, 55 per cent, of surviving birds shot, and a winter loss (probably largely due to emigration) of 40 per cent. of those left after the shooting season.