Two hundred and seven domestic pigeons (103 from 5 different flocks and 104 sporadic cases) were subjected to clinical, postmortem, parasitological and histopathological examinations. Hadjelia truncata, Ascaridia columbae, Capillaria obsignata, Cotugnia digonopora and Eimeria columbae were identified among different flocks and sporadic cases. The gizzard worm (Hadjelia truncata) was recorded as one of the most common and pathogenic parasite among examined flocks. It was accompanied with severe gross and microscopic lesions. This declare the importance and spread of this nematode among pigeons especially in those reared under captive system. Variable infections with ascaridia, capillaria, Cotugnia and Coccidia were recorded in different flocks as well as in the sporadic cases.