This work was carried out at the poultry farm-Animal production belonging to faculty of agriculture, Benha university through the period from April to the end of September2019 to study the effect of some feed additives (Yeast, Fenugreek seeds and Chamomile flowers) on some behaviors and productive performance of parent pigeons using 16 pairs of hybrid pigeons (Carrier x local Egyptian baladi) with age of 6 months, they were distributed according to their mating system (sex ratio 1:1). Pigeons were divided into 4 treatments each of them composed of 4 pairs and were reared under the same managerial conditions. The obtained results revealed that pigeons those fed on Yeast had high frequency of feeding, drinking and sitting on eggs also, it increased length of incubation period while, it decreased hatchability %. Fenugreek seeds had high frequency of preening and sitting on eggs but, it decreased the length of incubation period. Both Fenugreek and chamomile flowers improved hatchability %. From this work, it can be concluded that addition of some feed additives (Yeast, Fenugreek seeds and Chamomile) had the ability to improve behaviors, reproductive and productive performance of adult pigeons.