Effects of the light regime and breeding experience on budgerigar reproduction

Abstract

Female budgerigars, provided with nest‐boxes and exposed to male vocalizations, lay more rapidly under a 14 L: 10 D photoregime than under regimes involving shorter light periods, though some birds will lay even when kept under continuous darkness. The photoperiod affects principally the interval between nest‐box entry and egg‐laying. Birds with previous breeding experience lay sooner than naive birds.