Mahmood Taha Al-Hamdany, A. and Hassan Hamid AL-arajee, H. 2019. Comparative Anatomical and Histological Study of the pecten oculi in three species of birds that differ in their nutrition. Journal of Education and Science. 28, 3 (Sep. 2019), 168–177. DOI:https://doi.org/10.33899/edusj.2019.162972.